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Finding the Fourth Proportional to 287,080.59, 396,164.46 and 159,753.45

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Solution

The fourth proportional to 287,080.59, 396,164.46 and 159,753.45 is: 220,456.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,080.59 : 396,164.46 = 159,753.45 : x
  2. Step 2: Convert to fraction form
    287,080.59/396,164.46 = 159,753.45/x
  3. Step 3: Cross multiply
    287,080.59x = 396,164.46 × 159,753.45
  4. Step 4: Simplify right side
    287,080.59x = 63,288,639,252.39
  5. Step 5: Solve for x
    x = 63,288,639,252.39/287,080.59
  6. Step 6: Final answer
    x = 220,456.00

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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.