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Finding the Fourth Proportional to 521,753.70, 782,557.65 and 166,803.60

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Solution

The fourth proportional to 521,753.70, 782,557.65 and 166,803.60 is: 250,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,753.70 : 782,557.65 = 166,803.60 : x
  2. Step 2: Convert to fraction form
    521,753.70/782,557.65 = 166,803.60/x
  3. Step 3: Cross multiply
    521,753.70x = 782,557.65 × 166,803.60
  4. Step 4: Simplify right side
    521,753.70x = 130,533,433,227.54
  5. Step 5: Solve for x
    x = 130,533,433,227.54/521,753.70
  6. Step 6: Final answer
    x = 250,182.09

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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.