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Finding the Fourth Proportional to 275,049.65, 379,566.18 and 154,190.58

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Solution

The fourth proportional to 275,049.65, 379,566.18 and 154,190.58 is: 212,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,049.65 : 379,566.18 = 154,190.58 : x
  2. Step 2: Convert to fraction form
    275,049.65/379,566.18 = 154,190.58/x
  3. Step 3: Cross multiply
    275,049.65x = 379,566.18 × 154,190.58
  4. Step 4: Simplify right side
    275,049.65x = 58,525,529,442.58
  5. Step 5: Solve for x
    x = 58,525,529,442.58/275,049.65
  6. Step 6: Final answer
    x = 212,781.69

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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.