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Finding the Fourth Proportional to 562.25, 773.29 and 451.55

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Solution

The fourth proportional to 562.25, 773.29 and 451.55 is: 621.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.25 : 773.29 = 451.55 : x
  2. Step 2: Convert to fraction form
    562.25/773.29 = 451.55/x
  3. Step 3: Cross multiply
    562.25x = 773.29 × 451.55
  4. Step 4: Simplify right side
    562.25x = 349,179.10
  5. Step 5: Solve for x
    x = 349,179.10/562.25
  6. Step 6: Final answer
    x = 621.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.