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Finding the Fourth Proportional to 182.71, 251.89 and 124.39

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Solution

The fourth proportional to 182.71, 251.89 and 124.39 is: 171.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.71 : 251.89 = 124.39 : x
  2. Step 2: Convert to fraction form
    182.71/251.89 = 124.39/x
  3. Step 3: Cross multiply
    182.71x = 251.89 × 124.39
  4. Step 4: Simplify right side
    182.71x = 31,332.60
  5. Step 5: Solve for x
    x = 31,332.60/182.71
  6. Step 6: Final answer
    x = 171.49

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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.