Home / 521,444.96-782,252.04-161,531.72

Finding the Fourth Proportional to 521,444.96, 782,252.04 and 161,531.72

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Solution

The fourth proportional to 521,444.96, 782,252.04 and 161,531.72 is: 242,323.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,444.96 : 782,252.04 = 161,531.72 : x
  2. Step 2: Convert to fraction form
    521,444.96/782,252.04 = 161,531.72/x
  3. Step 3: Cross multiply
    521,444.96x = 782,252.04 × 161,531.72
  4. Step 4: Simplify right side
    521,444.96x = 126,358,517,494.71
  5. Step 5: Solve for x
    x = 126,358,517,494.71/521,444.96
  6. Step 6: Final answer
    x = 242,323.79

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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.