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Finding the Fourth Proportional to 621.56, 932.59 and 292.25

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Solution

The fourth proportional to 621.56, 932.59 and 292.25 is: 438.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.56 : 932.59 = 292.25 : x
  2. Step 2: Convert to fraction form
    621.56/932.59 = 292.25/x
  3. Step 3: Cross multiply
    621.56x = 932.59 × 292.25
  4. Step 4: Simplify right side
    621.56x = 272,549.43
  5. Step 5: Solve for x
    x = 272,549.43/621.56
  6. Step 6: Final answer
    x = 438.49

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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.