Home / 248,579.49-343,042.05-141,151.78

Finding the Fourth Proportional to 248,579.49, 343,042.05 and 141,151.78

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Solution

The fourth proportional to 248,579.49, 343,042.05 and 141,151.78 is: 194,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,579.49 : 343,042.05 = 141,151.78 : x
  2. Step 2: Convert to fraction form
    248,579.49/343,042.05 = 141,151.78/x
  3. Step 3: Cross multiply
    248,579.49x = 343,042.05 × 141,151.78
  4. Step 4: Simplify right side
    248,579.49x = 48,420,995,972.35
  5. Step 5: Solve for x
    x = 48,420,995,972.35/248,579.49
  6. Step 6: Final answer
    x = 194,790.79

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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.