Home / 278,565.97-417,799.55-126,727.77

Finding the Fourth Proportional to 278,565.97, 417,799.55 and 126,727.77

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Solution

The fourth proportional to 278,565.97, 417,799.55 and 126,727.77 is: 190,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,565.97 : 417,799.55 = 126,727.77 : x
  2. Step 2: Convert to fraction form
    278,565.97/417,799.55 = 126,727.77/x
  3. Step 3: Cross multiply
    278,565.97x = 417,799.55 × 126,727.77
  4. Step 4: Simplify right side
    278,565.97x = 52,946,805,595.32
  5. Step 5: Solve for x
    x = 52,946,805,595.32/278,565.97
  6. Step 6: Final answer
    x = 190,069.18

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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.