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Finding the Fourth Proportional to 279,189.34, 418,541.01 and 179,377.90

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Solution

The fourth proportional to 279,189.34, 418,541.01 and 179,377.90 is: 268,910.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,189.34 : 418,541.01 = 179,377.90 : x
  2. Step 2: Convert to fraction form
    279,189.34/418,541.01 = 179,377.90/x
  3. Step 3: Cross multiply
    279,189.34x = 418,541.01 × 179,377.90
  4. Step 4: Simplify right side
    279,189.34x = 75,077,007,437.68
  5. Step 5: Solve for x
    x = 75,077,007,437.68/279,189.34
  6. Step 6: Final answer
    x = 268,910.72

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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.