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Finding the Fourth Proportional to 272,930, 376,645.84 and 159,755.18

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Solution

The fourth proportional to 272,930, 376,645.84 and 159,755.18 is: 220,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,930 : 376,645.84 = 159,755.18 : x
  2. Step 2: Convert to fraction form
    272,930/376,645.84 = 159,755.18/x
  3. Step 3: Cross multiply
    272,930x = 376,645.84 × 159,755.18
  4. Step 4: Simplify right side
    272,930x = 60,171,123,965.45
  5. Step 5: Solve for x
    x = 60,171,123,965.45/272,930
  6. Step 6: Final answer
    x = 220,463.58

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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.