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Finding the Fourth Proportional to 521,375.53, 782,076.96 and 166,389.29

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Solution

The fourth proportional to 521,375.53, 782,076.96 and 166,389.29 is: 249,588.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,375.53 : 782,076.96 = 166,389.29 : x
  2. Step 2: Convert to fraction form
    521,375.53/782,076.96 = 166,389.29/x
  3. Step 3: Cross multiply
    521,375.53x = 782,076.96 × 166,389.29
  4. Step 4: Simplify right side
    521,375.53x = 130,129,226,189.37
  5. Step 5: Solve for x
    x = 130,129,226,189.37/521,375.53
  6. Step 6: Final answer
    x = 249,588.29

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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.