Home / 280,127.32-386,560.15-159,251.83

Finding the Fourth Proportional to 280,127.32, 386,560.15 and 159,251.83

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Solution

The fourth proportional to 280,127.32, 386,560.15 and 159,251.83 is: 219,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,127.32 : 386,560.15 = 159,251.83 : x
  2. Step 2: Convert to fraction form
    280,127.32/386,560.15 = 159,251.83/x
  3. Step 3: Cross multiply
    280,127.32x = 386,560.15 × 159,251.83
  4. Step 4: Simplify right side
    280,127.32x = 61,560,411,292.57
  5. Step 5: Solve for x
    x = 61,560,411,292.57/280,127.32
  6. Step 6: Final answer
    x = 219,758.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.