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Finding the Fourth Proportional to 521,265.16, 781,996.86 and 179,617.96

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Solution

The fourth proportional to 521,265.16, 781,996.86 and 179,617.96 is: 269,461.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,265.16 : 781,996.86 = 179,617.96 : x
  2. Step 2: Convert to fraction form
    521,265.16/781,996.86 = 179,617.96/x
  3. Step 3: Cross multiply
    521,265.16x = 781,996.86 × 179,617.96
  4. Step 4: Simplify right side
    521,265.16x = 140,460,680,719.61
  5. Step 5: Solve for x
    x = 140,460,680,719.61/521,265.16
  6. Step 6: Final answer
    x = 269,461.09

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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.