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Finding the Fourth Proportional to 630,025, 945,037.50 and 163,081

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Solution

The fourth proportional to 630,025, 945,037.50 and 163,081 is: 244,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,025 : 945,037.50 = 163,081 : x
  2. Step 2: Convert to fraction form
    630,025/945,037.50 = 163,081/x
  3. Step 3: Cross multiply
    630,025x = 945,037.50 × 163,081
  4. Step 4: Simplify right side
    630,025x = 154,117,660,537.50
  5. Step 5: Solve for x
    x = 154,117,660,537.50/630,025
  6. Step 6: Final answer
    x = 244,621.50

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.