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Finding the Fourth Proportional to 463.10, 637.18 and 400.73

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Solution

The fourth proportional to 463.10, 637.18 and 400.73 is: 551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.10 : 637.18 = 400.73 : x
  2. Step 2: Convert to fraction form
    463.10/637.18 = 400.73/x
  3. Step 3: Cross multiply
    463.10x = 637.18 × 400.73
  4. Step 4: Simplify right side
    463.10x = 255,337.14
  5. Step 5: Solve for x
    x = 255,337.14/463.10
  6. Step 6: Final answer
    x = 551.37

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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.