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Finding the Fourth Proportional to 274,957.88, 379,446.36 and 154,126.04

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Solution

The fourth proportional to 274,957.88, 379,446.36 and 154,126.04 is: 212,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,957.88 : 379,446.36 = 154,126.04 : x
  2. Step 2: Convert to fraction form
    274,957.88/379,446.36 = 154,126.04/x
  3. Step 3: Cross multiply
    274,957.88x = 379,446.36 × 154,126.04
  4. Step 4: Simplify right side
    274,957.88x = 58,482,564,859.21
  5. Step 5: Solve for x
    x = 58,482,564,859.21/274,957.88
  6. Step 6: Final answer
    x = 212,696.45

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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.