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Finding the Fourth Proportional to 657.38, 985.06 and 332.17

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Solution

The fourth proportional to 657.38, 985.06 and 332.17 is: 497.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.38 : 985.06 = 332.17 : x
  2. Step 2: Convert to fraction form
    657.38/985.06 = 332.17/x
  3. Step 3: Cross multiply
    657.38x = 985.06 × 332.17
  4. Step 4: Simplify right side
    657.38x = 327,205.33
  5. Step 5: Solve for x
    x = 327,205.33/657.38
  6. Step 6: Final answer
    x = 497.74

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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.