Home / 278,230.86-417,195.18-126,344.52

Finding the Fourth Proportional to 278,230.86, 417,195.18 and 126,344.52

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Solution

The fourth proportional to 278,230.86, 417,195.18 and 126,344.52 is: 189,448.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,230.86 : 417,195.18 = 126,344.52 : x
  2. Step 2: Convert to fraction form
    278,230.86/417,195.18 = 126,344.52/x
  3. Step 3: Cross multiply
    278,230.86x = 417,195.18 × 126,344.52
  4. Step 4: Simplify right side
    278,230.86x = 52,710,324,763.41
  5. Step 5: Solve for x
    x = 52,710,324,763.41/278,230.86
  6. Step 6: Final answer
    x = 189,448.16

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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.