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Finding the Fourth Proportional to 325,377.70, 488,139.45 and 125,680.30

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Solution

The fourth proportional to 325,377.70, 488,139.45 and 125,680.30 is: 188,548.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,377.70 : 488,139.45 = 125,680.30 : x
  2. Step 2: Convert to fraction form
    325,377.70/488,139.45 = 125,680.30/x
  3. Step 3: Cross multiply
    325,377.70x = 488,139.45 × 125,680.30
  4. Step 4: Simplify right side
    325,377.70x = 61,349,512,517.84
  5. Step 5: Solve for x
    x = 61,349,512,517.84/325,377.70
  6. Step 6: Final answer
    x = 188,548.61

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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.