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Finding the Fourth Proportional to 175.97, 242.59 and 143.17

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Solution

The fourth proportional to 175.97, 242.59 and 143.17 is: 197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.97 : 242.59 = 143.17 : x
  2. Step 2: Convert to fraction form
    175.97/242.59 = 143.17/x
  3. Step 3: Cross multiply
    175.97x = 242.59 × 143.17
  4. Step 4: Simplify right side
    175.97x = 34,731.61
  5. Step 5: Solve for x
    x = 34,731.61/175.97
  6. Step 6: Final answer
    x = 197.37

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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.