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Finding the Fourth Proportional to 308.32, 462.45 and 125.59

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Solution

The fourth proportional to 308.32, 462.45 and 125.59 is: 188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    308.32 : 462.45 = 125.59 : x
  2. Step 2: Convert to fraction form
    308.32/462.45 = 125.59/x
  3. Step 3: Cross multiply
    308.32x = 462.45 × 125.59
  4. Step 4: Simplify right side
    308.32x = 58,079.10
  5. Step 5: Solve for x
    x = 58,079.10/308.32
  6. Step 6: Final answer
    x = 188.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.