Home / 278,582.30-418,039.45-101,103.14

Finding the Fourth Proportional to 278,582.30, 418,039.45 and 101,103.14

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Solution

The fourth proportional to 278,582.30, 418,039.45 and 101,103.14 is: 151,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,582.30 : 418,039.45 = 101,103.14 : x
  2. Step 2: Convert to fraction form
    278,582.30/418,039.45 = 101,103.14/x
  3. Step 3: Cross multiply
    278,582.30x = 418,039.45 × 101,103.14
  4. Step 4: Simplify right side
    278,582.30x = 42,265,098,443.16
  5. Step 5: Solve for x
    x = 42,265,098,443.16/278,582.30
  6. Step 6: Final answer
    x = 151,714.95

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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.