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Finding the Fourth Proportional to 332.97, 499.28 and 127.56

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Solution

The fourth proportional to 332.97, 499.28 and 127.56 is: 191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.97 : 499.28 = 127.56 : x
  2. Step 2: Convert to fraction form
    332.97/499.28 = 127.56/x
  3. Step 3: Cross multiply
    332.97x = 499.28 × 127.56
  4. Step 4: Simplify right side
    332.97x = 63,688.87
  5. Step 5: Solve for x
    x = 63,688.87/332.97
  6. Step 6: Final answer
    x = 191.27

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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.