Home / 345,296.05-517,862.03-131,985.59

Finding the Fourth Proportional to 345,296.05, 517,862.03 and 131,985.59

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Solution

The fourth proportional to 345,296.05, 517,862.03 and 131,985.59 is: 197,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,296.05 : 517,862.03 = 131,985.59 : x
  2. Step 2: Convert to fraction form
    345,296.05/517,862.03 = 131,985.59/x
  3. Step 3: Cross multiply
    345,296.05x = 517,862.03 × 131,985.59
  4. Step 4: Simplify right side
    345,296.05x = 68,350,322,318.91
  5. Step 5: Solve for x
    x = 68,350,322,318.91/345,296.05
  6. Step 6: Final answer
    x = 197,947.02

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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.