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Finding the Fourth Proportional to 279,360.28, 418,805.70 and 226,639

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Solution

The fourth proportional to 279,360.28, 418,805.70 and 226,639 is: 339,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,360.28 : 418,805.70 = 226,639 : x
  2. Step 2: Convert to fraction form
    279,360.28/418,805.70 = 226,639/x
  3. Step 3: Cross multiply
    279,360.28x = 418,805.70 × 226,639
  4. Step 4: Simplify right side
    279,360.28x = 94,917,705,042.30
  5. Step 5: Solve for x
    x = 94,917,705,042.30/279,360.28
  6. Step 6: Final answer
    x = 339,768.08

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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.