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Finding the Fourth Proportional to 462.35, 637.16 and 331.13

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Solution

The fourth proportional to 462.35, 637.16 and 331.13 is: 456.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.35 : 637.16 = 331.13 : x
  2. Step 2: Convert to fraction form
    462.35/637.16 = 331.13/x
  3. Step 3: Cross multiply
    462.35x = 637.16 × 331.13
  4. Step 4: Simplify right side
    462.35x = 210,983.40
  5. Step 5: Solve for x
    x = 210,983.40/462.35
  6. Step 6: Final answer
    x = 456.33

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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.