Home / 258,340.56-356,683.94-231,031.92

Finding the Fourth Proportional to 258,340.56, 356,683.94 and 231,031.92

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Solution

The fourth proportional to 258,340.56, 356,683.94 and 231,031.92 is: 318,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,340.56 : 356,683.94 = 231,031.92 : x
  2. Step 2: Convert to fraction form
    258,340.56/356,683.94 = 231,031.92/x
  3. Step 3: Cross multiply
    258,340.56x = 356,683.94 × 231,031.92
  4. Step 4: Simplify right side
    258,340.56x = 82,405,375,491.36
  5. Step 5: Solve for x
    x = 82,405,375,491.36/258,340.56
  6. Step 6: Final answer
    x = 318,979.63

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1.5x scale

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.