Home / 279,251.11-418,738.29-99,309.57

Finding the Fourth Proportional to 279,251.11, 418,738.29 and 99,309.57

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Solution

The fourth proportional to 279,251.11, 418,738.29 and 99,309.57 is: 148,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,251.11 : 418,738.29 = 99,309.57 : x
  2. Step 2: Convert to fraction form
    279,251.11/418,738.29 = 99,309.57/x
  3. Step 3: Cross multiply
    279,251.11x = 418,738.29 × 99,309.57
  4. Step 4: Simplify right side
    279,251.11x = 41,584,719,522.44
  5. Step 5: Solve for x
    x = 41,584,719,522.44/279,251.11
  6. Step 6: Final answer
    x = 148,915.14

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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.