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Finding the Fourth Proportional to 299,910.48, 413,921.88 and 172,577.52

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Solution

The fourth proportional to 299,910.48, 413,921.88 and 172,577.52 is: 238,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,910.48 : 413,921.88 = 172,577.52 : x
  2. Step 2: Convert to fraction form
    299,910.48/413,921.88 = 172,577.52/x
  3. Step 3: Cross multiply
    299,910.48x = 413,921.88 × 172,577.52
  4. Step 4: Simplify right side
    299,910.48x = 71,433,611,524.14
  5. Step 5: Solve for x
    x = 71,433,611,524.14/299,910.48
  6. Step 6: Final answer
    x = 238,183.11

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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.