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Finding the Fourth Proportional to 337.40, 506.15 and 106.31

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Solution

The fourth proportional to 337.40, 506.15 and 106.31 is: 159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.40 : 506.15 = 106.31 : x
  2. Step 2: Convert to fraction form
    337.40/506.15 = 106.31/x
  3. Step 3: Cross multiply
    337.40x = 506.15 × 106.31
  4. Step 4: Simplify right side
    337.40x = 53,808.27
  5. Step 5: Solve for x
    x = 53,808.27/337.40
  6. Step 6: Final answer
    x = 159.48

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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.