Home / 287,097.24-396,191.30-159,770.68

Finding the Fourth Proportional to 287,097.24, 396,191.30 and 159,770.68

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Solution

The fourth proportional to 287,097.24, 396,191.30 and 159,770.68 is: 220,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,097.24 : 396,191.30 = 159,770.68 : x
  2. Step 2: Convert to fraction form
    287,097.24/396,191.30 = 159,770.68/x
  3. Step 3: Cross multiply
    287,097.24x = 396,191.30 × 159,770.68
  4. Step 4: Simplify right side
    287,097.24x = 63,299,753,411.08
  5. Step 5: Solve for x
    x = 63,299,753,411.08/287,097.24
  6. Step 6: Final answer
    x = 220,481.93

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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.