Home / 280,656.28-387,306.05-159,797.62

Finding the Fourth Proportional to 280,656.28, 387,306.05 and 159,797.62

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Solution

The fourth proportional to 280,656.28, 387,306.05 and 159,797.62 is: 220,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,656.28 : 387,306.05 = 159,797.62 : x
  2. Step 2: Convert to fraction form
    280,656.28/387,306.05 = 159,797.62/x
  3. Step 3: Cross multiply
    280,656.28x = 387,306.05 × 159,797.62
  4. Step 4: Simplify right side
    280,656.28x = 61,890,583,234.35
  5. Step 5: Solve for x
    x = 61,890,583,234.35/280,656.28
  6. Step 6: Final answer
    x = 220,520.93

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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.