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Finding the Fourth Proportional to 521,475.56, 782,226.84 and 166,489.28

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Solution

The fourth proportional to 521,475.56, 782,226.84 and 166,489.28 is: 249,738.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,475.56 : 782,226.84 = 166,489.28 : x
  2. Step 2: Convert to fraction form
    521,475.56/782,226.84 = 166,489.28/x
  3. Step 3: Cross multiply
    521,475.56x = 782,226.84 × 166,489.28
  4. Step 4: Simplify right side
    521,475.56x = 130,232,383,388.28
  5. Step 5: Solve for x
    x = 130,232,383,388.28/521,475.56
  6. Step 6: Final answer
    x = 249,738.23

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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.