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Finding the Fourth Proportional to 175.69, 242.31 and 125.83

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Solution

The fourth proportional to 175.69, 242.31 and 125.83 is: 173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.69 : 242.31 = 125.83 : x
  2. Step 2: Convert to fraction form
    175.69/242.31 = 125.83/x
  3. Step 3: Cross multiply
    175.69x = 242.31 × 125.83
  4. Step 4: Simplify right side
    175.69x = 30,489.87
  5. Step 5: Solve for x
    x = 30,489.87/175.69
  6. Step 6: Final answer
    x = 173.54

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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.