Home / 351,729.30-527,589.34-85,489.04

Finding the Fourth Proportional to 351,729.30, 527,589.34 and 85,489.04

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Solution

The fourth proportional to 351,729.30, 527,589.34 and 85,489.04 is: 128,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,729.30 : 527,589.34 = 85,489.04 : x
  2. Step 2: Convert to fraction form
    351,729.30/527,589.34 = 85,489.04/x
  3. Step 3: Cross multiply
    351,729.30x = 527,589.34 × 85,489.04
  4. Step 4: Simplify right side
    351,729.30x = 45,103,106,190.83
  5. Step 5: Solve for x
    x = 45,103,106,190.83/351,729.30
  6. Step 6: Final answer
    x = 128,232.44

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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.