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Finding the Fourth Proportional to 825.02, 1,237.52 and 305.02

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Solution

The fourth proportional to 825.02, 1,237.52 and 305.02 is: 457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    825.02 : 1,237.52 = 305.02 : x
  2. Step 2: Convert to fraction form
    825.02/1,237.52 = 305.02/x
  3. Step 3: Cross multiply
    825.02x = 1,237.52 × 305.02
  4. Step 4: Simplify right side
    825.02x = 377,468.35
  5. Step 5: Solve for x
    x = 377,468.35/825.02
  6. Step 6: Final answer
    x = 457.53

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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.