Home / 345,170.28-517,743.11-120,529.85

Finding the Fourth Proportional to 345,170.28, 517,743.11 and 120,529.85

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Solution

The fourth proportional to 345,170.28, 517,743.11 and 120,529.85 is: 180,790.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,170.28 : 517,743.11 = 120,529.85 : x
  2. Step 2: Convert to fraction form
    345,170.28/517,743.11 = 120,529.85/x
  3. Step 3: Cross multiply
    345,170.28x = 517,743.11 × 120,529.85
  4. Step 4: Simplify right side
    345,170.28x = 62,403,496,195.47
  5. Step 5: Solve for x
    x = 62,403,496,195.47/345,170.28
  6. Step 6: Final answer
    x = 180,790.47

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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.