Home / 345,171.28-517,744.60-120,530.85

Finding the Fourth Proportional to 345,171.28, 517,744.60 and 120,530.85

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Solution

The fourth proportional to 345,171.28, 517,744.60 and 120,530.85 is: 180,791.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,171.28 : 517,744.60 = 120,530.85 : x
  2. Step 2: Convert to fraction form
    345,171.28/517,744.60 = 120,530.85/x
  3. Step 3: Cross multiply
    345,171.28x = 517,744.60 × 120,530.85
  4. Step 4: Simplify right side
    345,171.28x = 62,404,196,720.91
  5. Step 5: Solve for x
    x = 62,404,196,720.91/345,171.28
  6. Step 6: Final answer
    x = 180,791.97

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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.