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Finding the Fourth Proportional to 274,961.88, 379,451.88 and 154,130.04

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Solution

The fourth proportional to 274,961.88, 379,451.88 and 154,130.04 is: 212,701.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,961.88 : 379,451.88 = 154,130.04 : x
  2. Step 2: Convert to fraction form
    274,961.88/379,451.88 = 154,130.04/x
  3. Step 3: Cross multiply
    274,961.88x = 379,451.88 × 154,130.04
  4. Step 4: Simplify right side
    274,961.88x = 58,484,933,442.48
  5. Step 5: Solve for x
    x = 58,484,933,442.48/274,961.88
  6. Step 6: Final answer
    x = 212,701.97

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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.