Home / 274,857.17-379,296.28-154,003.55

Finding the Fourth Proportional to 274,857.17, 379,296.28 and 154,003.55

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Solution

The fourth proportional to 274,857.17, 379,296.28 and 154,003.55 is: 212,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,857.17 : 379,296.28 = 154,003.55 : x
  2. Step 2: Convert to fraction form
    274,857.17/379,296.28 = 154,003.55/x
  3. Step 3: Cross multiply
    274,857.17x = 379,296.28 × 154,003.55
  4. Step 4: Simplify right side
    274,857.17x = 58,412,973,621.79
  5. Step 5: Solve for x
    x = 58,412,973,621.79/274,857.17
  6. Step 6: Final answer
    x = 212,521.19

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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.