Home / 217,824.78-300,562.92-136,143.41

Finding the Fourth Proportional to 217,824.78, 300,562.92 and 136,143.41

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Solution

The fourth proportional to 217,824.78, 300,562.92 and 136,143.41 is: 187,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,824.78 : 300,562.92 = 136,143.41 : x
  2. Step 2: Convert to fraction form
    217,824.78/300,562.92 = 136,143.41/x
  3. Step 3: Cross multiply
    217,824.78x = 300,562.92 × 136,143.41
  4. Step 4: Simplify right side
    217,824.78x = 40,919,659,345.54
  5. Step 5: Solve for x
    x = 40,919,659,345.54/217,824.78
  6. Step 6: Final answer
    x = 187,855.85

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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.