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Finding the Fourth Proportional to 279,876.26, 419,607.03 and 169,042.34

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Solution

The fourth proportional to 279,876.26, 419,607.03 and 169,042.34 is: 253,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,876.26 : 419,607.03 = 169,042.34 : x
  2. Step 2: Convert to fraction form
    279,876.26/419,607.03 = 169,042.34/x
  3. Step 3: Cross multiply
    279,876.26x = 419,607.03 × 169,042.34
  4. Step 4: Simplify right side
    279,876.26x = 70,931,354,231.65
  5. Step 5: Solve for x
    x = 70,931,354,231.65/279,876.26
  6. Step 6: Final answer
    x = 253,438.27

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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.