Home / 280,244.50-386,735.18-159,385.61

Finding the Fourth Proportional to 280,244.50, 386,735.18 and 159,385.61

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Solution

The fourth proportional to 280,244.50, 386,735.18 and 159,385.61 is: 219,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,244.50 : 386,735.18 = 159,385.61 : x
  2. Step 2: Convert to fraction form
    280,244.50/386,735.18 = 159,385.61/x
  3. Step 3: Cross multiply
    280,244.50x = 386,735.18 × 159,385.61
  4. Step 4: Simplify right side
    280,244.50x = 61,640,022,742.67
  5. Step 5: Solve for x
    x = 61,640,022,742.67/280,244.50
  6. Step 6: Final answer
    x = 219,950.88

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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.