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Finding the Fourth Proportional to 521,877.98, 782,767.56 and 166,796.66

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Solution

The fourth proportional to 521,877.98, 782,767.56 and 166,796.66 is: 250,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,877.98 : 782,767.56 = 166,796.66 : x
  2. Step 2: Convert to fraction form
    521,877.98/782,767.56 = 166,796.66/x
  3. Step 3: Cross multiply
    521,877.98x = 782,767.56 × 166,796.66
  4. Step 4: Simplify right side
    521,877.98x = 130,563,014,564.35
  5. Step 5: Solve for x
    x = 130,563,014,564.35/521,877.98
  6. Step 6: Final answer
    x = 250,179.20

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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.