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Finding the Fourth Proportional to 182.08, 251.13 and 129.53

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Solution

The fourth proportional to 182.08, 251.13 and 129.53 is: 178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.08 : 251.13 = 129.53 : x
  2. Step 2: Convert to fraction form
    182.08/251.13 = 129.53/x
  3. Step 3: Cross multiply
    182.08x = 251.13 × 129.53
  4. Step 4: Simplify right side
    182.08x = 32,529.98
  5. Step 5: Solve for x
    x = 32,529.98/182.08
  6. Step 6: Final answer
    x = 178.66

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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.