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Finding the Fourth Proportional to 462.01, 637.38 and 331.19

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Solution

The fourth proportional to 462.01, 637.38 and 331.19 is: 456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.01 : 637.38 = 331.19 : x
  2. Step 2: Convert to fraction form
    462.01/637.38 = 331.19/x
  3. Step 3: Cross multiply
    462.01x = 637.38 × 331.19
  4. Step 4: Simplify right side
    462.01x = 211,095.48
  5. Step 5: Solve for x
    x = 211,095.48/462.01
  6. Step 6: Final answer
    x = 456.91

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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.