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Finding the Fourth Proportional to 230,250.24, 317,774.40 and 129,648

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Solution

The fourth proportional to 230,250.24, 317,774.40 and 129,648 is: 178,930.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,250.24 : 317,774.40 = 129,648 : x
  2. Step 2: Convert to fraction form
    230,250.24/317,774.40 = 129,648/x
  3. Step 3: Cross multiply
    230,250.24x = 317,774.40 × 129,648
  4. Step 4: Simplify right side
    230,250.24x = 41,198,815,411.20
  5. Step 5: Solve for x
    x = 41,198,815,411.20/230,250.24
  6. Step 6: Final answer
    x = 178,930.61

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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.