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Finding the Fourth Proportional to 275,249.88, 379,772.28 and 158,934.69

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Solution

The fourth proportional to 275,249.88, 379,772.28 and 158,934.69 is: 219,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,249.88 : 379,772.28 = 158,934.69 : x
  2. Step 2: Convert to fraction form
    275,249.88/379,772.28 = 158,934.69/x
  3. Step 3: Cross multiply
    275,249.88x = 379,772.28 × 158,934.69
  4. Step 4: Simplify right side
    275,249.88x = 60,358,989,592.39
  5. Step 5: Solve for x
    x = 60,358,989,592.39/275,249.88
  6. Step 6: Final answer
    x = 219,287.98

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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.