Home / 278,819.20-417,767.10-160,283.80

Finding the Fourth Proportional to 278,819.20, 417,767.10 and 160,283.80

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Solution

The fourth proportional to 278,819.20, 417,767.10 and 160,283.80 is: 240,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,819.20 : 417,767.10 = 160,283.80 : x
  2. Step 2: Convert to fraction form
    278,819.20/417,767.10 = 160,283.80/x
  3. Step 3: Cross multiply
    278,819.20x = 417,767.10 × 160,283.80
  4. Step 4: Simplify right side
    278,819.20x = 66,961,298,302.98
  5. Step 5: Solve for x
    x = 66,961,298,302.98/278,819.20
  6. Step 6: Final answer
    x = 240,160.28

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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.