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Finding the Fourth Proportional to 475.55, 709.71 and 463.25

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Solution

The fourth proportional to 475.55, 709.71 and 463.25 is: 691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.55 : 709.71 = 463.25 : x
  2. Step 2: Convert to fraction form
    475.55/709.71 = 463.25/x
  3. Step 3: Cross multiply
    475.55x = 709.71 × 463.25
  4. Step 4: Simplify right side
    475.55x = 328,769.61
  5. Step 5: Solve for x
    x = 328,769.61/475.55
  6. Step 6: Final answer
    x = 691.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.