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Finding the Fourth Proportional to 332.35, 498.39 and 239.77

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Solution

The fourth proportional to 332.35, 498.39 and 239.77 is: 359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.35 : 498.39 = 239.77 : x
  2. Step 2: Convert to fraction form
    332.35/498.39 = 239.77/x
  3. Step 3: Cross multiply
    332.35x = 498.39 × 239.77
  4. Step 4: Simplify right side
    332.35x = 119,498.97
  5. Step 5: Solve for x
    x = 119,498.97/332.35
  6. Step 6: Final answer
    x = 359.56

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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.