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Finding the Fourth Proportional to 521,753.07, 782,591.33 and 166,671.75

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Solution

The fourth proportional to 521,753.07, 782,591.33 and 166,671.75 is: 249,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,753.07 : 782,591.33 = 166,671.75 : x
  2. Step 2: Convert to fraction form
    521,753.07/782,591.33 = 166,671.75/x
  3. Step 3: Cross multiply
    521,753.07x = 782,591.33 × 166,671.75
  4. Step 4: Simplify right side
    521,753.07x = 130,435,865,672.57
  5. Step 5: Solve for x
    x = 130,435,865,672.57/521,753.07
  6. Step 6: Final answer
    x = 249,995.40

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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.