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Finding the Fourth Proportional to 521,752.88, 782,591.04 and 166,671.56

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Solution

The fourth proportional to 521,752.88, 782,591.04 and 166,671.56 is: 249,995.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,752.88 : 782,591.04 = 166,671.56 : x
  2. Step 2: Convert to fraction form
    521,752.88/782,591.04 = 166,671.56/x
  3. Step 3: Cross multiply
    521,752.88x = 782,591.04 × 166,671.56
  4. Step 4: Simplify right side
    521,752.88x = 130,435,671,435.30
  5. Step 5: Solve for x
    x = 130,435,671,435.30/521,752.88
  6. Step 6: Final answer
    x = 249,995.11

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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.