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Finding the Fourth Proportional to 337.47, 465.39 and 239.55

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Solution

The fourth proportional to 337.47, 465.39 and 239.55 is: 330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.47 : 465.39 = 239.55 : x
  2. Step 2: Convert to fraction form
    337.47/465.39 = 239.55/x
  3. Step 3: Cross multiply
    337.47x = 465.39 × 239.55
  4. Step 4: Simplify right side
    337.47x = 111,484.17
  5. Step 5: Solve for x
    x = 111,484.17/337.47
  6. Step 6: Final answer
    x = 330.35

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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.