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Finding the Fourth Proportional to 281,105.76, 420,982.88 and 160,797.92

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Solution

The fourth proportional to 281,105.76, 420,982.88 and 160,797.92 is: 240,810.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,105.76 : 420,982.88 = 160,797.92 : x
  2. Step 2: Convert to fraction form
    281,105.76/420,982.88 = 160,797.92/x
  3. Step 3: Cross multiply
    281,105.76x = 420,982.88 × 160,797.92
  4. Step 4: Simplify right side
    281,105.76x = 67,693,171,459.61
  5. Step 5: Solve for x
    x = 67,693,171,459.61/281,105.76
  6. Step 6: Final answer
    x = 240,810.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.