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Finding the Fourth Proportional to 423.92, 585.05 and 237.42

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Solution

The fourth proportional to 423.92, 585.05 and 237.42 is: 327.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.92 : 585.05 = 237.42 : x
  2. Step 2: Convert to fraction form
    423.92/585.05 = 237.42/x
  3. Step 3: Cross multiply
    423.92x = 585.05 × 237.42
  4. Step 4: Simplify right side
    423.92x = 138,901.38
  5. Step 5: Solve for x
    x = 138,901.38/423.92
  6. Step 6: Final answer
    x = 327.66

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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.