Home / 247,789.08-371,819.88-129,564.72

Finding the Fourth Proportional to 247,789.08, 371,819.88 and 129,564.72

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Solution

The fourth proportional to 247,789.08, 371,819.88 and 129,564.72 is: 194,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,789.08 : 371,819.88 = 129,564.72 : x
  2. Step 2: Convert to fraction form
    247,789.08/371,819.88 = 129,564.72/x
  3. Step 3: Cross multiply
    247,789.08x = 371,819.88 × 129,564.72
  4. Step 4: Simplify right side
    247,789.08x = 48,174,738,642.63
  5. Step 5: Solve for x
    x = 48,174,738,642.63/247,789.08
  6. Step 6: Final answer
    x = 194,418.33

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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.