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Finding the Fourth Proportional to 274,908.34, 379,373.25 and 154,050.58

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Solution

The fourth proportional to 274,908.34, 379,373.25 and 154,050.58 is: 212,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,908.34 : 379,373.25 = 154,050.58 : x
  2. Step 2: Convert to fraction form
    274,908.34/379,373.25 = 154,050.58/x
  3. Step 3: Cross multiply
    274,908.34x = 379,373.25 × 154,050.58
  4. Step 4: Simplify right side
    274,908.34x = 58,442,669,198.99
  5. Step 5: Solve for x
    x = 58,442,669,198.99/274,908.34
  6. Step 6: Final answer
    x = 212,589.66

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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.