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Finding the Fourth Proportional to 279,174.44, 418,708.24 and 108,396.15

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Solution

The fourth proportional to 279,174.44, 418,708.24 and 108,396.15 is: 162,573.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,174.44 : 418,708.24 = 108,396.15 : x
  2. Step 2: Convert to fraction form
    279,174.44/418,708.24 = 108,396.15/x
  3. Step 3: Cross multiply
    279,174.44x = 418,708.24 × 108,396.15
  4. Step 4: Simplify right side
    279,174.44x = 45,386,360,918.29
  5. Step 5: Solve for x
    x = 45,386,360,918.29/279,174.44
  6. Step 6: Final answer
    x = 162,573.49

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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.