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Finding the Fourth Proportional to 248,402.16, 343,195.80 and 173,286

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Solution

The fourth proportional to 248,402.16, 343,195.80 and 173,286 is: 239,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,402.16 : 343,195.80 = 173,286 : x
  2. Step 2: Convert to fraction form
    248,402.16/343,195.80 = 173,286/x
  3. Step 3: Cross multiply
    248,402.16x = 343,195.80 × 173,286
  4. Step 4: Simplify right side
    248,402.16x = 59,471,027,398.80
  5. Step 5: Solve for x
    x = 59,471,027,398.80/248,402.16
  6. Step 6: Final answer
    x = 239,414.29

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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.