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Finding the Fourth Proportional to 175.50, 242.19 and 97.89

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Solution

The fourth proportional to 175.50, 242.19 and 97.89 is: 135.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.50 : 242.19 = 97.89 : x
  2. Step 2: Convert to fraction form
    175.50/242.19 = 97.89/x
  3. Step 3: Cross multiply
    175.50x = 242.19 × 97.89
  4. Step 4: Simplify right side
    175.50x = 23,707.98
  5. Step 5: Solve for x
    x = 23,707.98/175.50
  6. Step 6: Final answer
    x = 135.09

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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.