Home / 278,549.10-417,823.65-260,834.40

Finding the Fourth Proportional to 278,549.10, 417,823.65 and 260,834.40

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Solution

The fourth proportional to 278,549.10, 417,823.65 and 260,834.40 is: 391,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,549.10 : 417,823.65 = 260,834.40 : x
  2. Step 2: Convert to fraction form
    278,549.10/417,823.65 = 260,834.40/x
  3. Step 3: Cross multiply
    278,549.10x = 417,823.65 × 260,834.40
  4. Step 4: Simplify right side
    278,549.10x = 108,982,781,053.56
  5. Step 5: Solve for x
    x = 108,982,781,053.56/278,549.10
  6. Step 6: Final answer
    x = 391,251.60

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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.