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Finding the Fourth Proportional to 127.43, 191.24 and 58.98

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Solution

The fourth proportional to 127.43, 191.24 and 58.98 is: 88.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127.43 : 191.24 = 58.98 : x
  2. Step 2: Convert to fraction form
    127.43/191.24 = 58.98/x
  3. Step 3: Cross multiply
    127.43x = 191.24 × 58.98
  4. Step 4: Simplify right side
    127.43x = 11,279.34
  5. Step 5: Solve for x
    x = 11,279.34/127.43
  6. Step 6: Final answer
    x = 88.51

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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.