Home / 287,244.90-396,387.27-159,917.76

Finding the Fourth Proportional to 287,244.90, 396,387.27 and 159,917.76

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Solution

The fourth proportional to 287,244.90, 396,387.27 and 159,917.76 is: 220,680.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,244.90 : 396,387.27 = 159,917.76 : x
  2. Step 2: Convert to fraction form
    287,244.90/396,387.27 = 159,917.76/x
  3. Step 3: Cross multiply
    287,244.90x = 396,387.27 × 159,917.76
  4. Step 4: Simplify right side
    287,244.90x = 63,389,364,310.92
  5. Step 5: Solve for x
    x = 63,389,364,310.92/287,244.90
  6. Step 6: Final answer
    x = 220,680.56

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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.