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Finding the Fourth Proportional to 275,064.62, 379,713.51 and 173,239.72

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Solution

The fourth proportional to 275,064.62, 379,713.51 and 173,239.72 is: 239,149.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,064.62 : 379,713.51 = 173,239.72 : x
  2. Step 2: Convert to fraction form
    275,064.62/379,713.51 = 173,239.72/x
  3. Step 3: Cross multiply
    275,064.62x = 379,713.51 × 173,239.72
  4. Step 4: Simplify right side
    275,064.62x = 65,781,462,152.62
  5. Step 5: Solve for x
    x = 65,781,462,152.62/275,064.62
  6. Step 6: Final answer
    x = 239,149.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.