Home / 279,512.76-419,338.26-92,543.16

Finding the Fourth Proportional to 279,512.76, 419,338.26 and 92,543.16

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Solution

The fourth proportional to 279,512.76, 419,338.26 and 92,543.16 is: 138,837.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,512.76 : 419,338.26 = 92,543.16 : x
  2. Step 2: Convert to fraction form
    279,512.76/419,338.26 = 92,543.16/x
  3. Step 3: Cross multiply
    279,512.76x = 419,338.26 × 92,543.16
  4. Step 4: Simplify right side
    279,512.76x = 38,806,887,689.30
  5. Step 5: Solve for x
    x = 38,806,887,689.30/279,512.76
  6. Step 6: Final answer
    x = 138,837.62

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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.