Home / 263,082.78-394,501.46-136,689.02

Finding the Fourth Proportional to 263,082.78, 394,501.46 and 136,689.02

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Solution

The fourth proportional to 263,082.78, 394,501.46 and 136,689.02 is: 204,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,082.78 : 394,501.46 = 136,689.02 : x
  2. Step 2: Convert to fraction form
    263,082.78/394,501.46 = 136,689.02/x
  3. Step 3: Cross multiply
    263,082.78x = 394,501.46 × 136,689.02
  4. Step 4: Simplify right side
    263,082.78x = 53,924,017,955.97
  5. Step 5: Solve for x
    x = 53,924,017,955.97/263,082.78
  6. Step 6: Final answer
    x = 204,969.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.