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Finding the Fourth Proportional to 630,255, 945,382.50 and 187,023

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Solution

The fourth proportional to 630,255, 945,382.50 and 187,023 is: 280,534.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,255 : 945,382.50 = 187,023 : x
  2. Step 2: Convert to fraction form
    630,255/945,382.50 = 187,023/x
  3. Step 3: Cross multiply
    630,255x = 945,382.50 × 187,023
  4. Step 4: Simplify right side
    630,255x = 176,808,271,297.50
  5. Step 5: Solve for x
    x = 176,808,271,297.50/630,255
  6. Step 6: Final answer
    x = 280,534.50

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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.