Home / 338,723.43-508,085.36-86,022.87

Finding the Fourth Proportional to 338,723.43, 508,085.36 and 86,022.87

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Solution

The fourth proportional to 338,723.43, 508,085.36 and 86,022.87 is: 129,034.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,723.43 : 508,085.36 = 86,022.87 : x
  2. Step 2: Convert to fraction form
    338,723.43/508,085.36 = 86,022.87/x
  3. Step 3: Cross multiply
    338,723.43x = 508,085.36 × 86,022.87
  4. Step 4: Simplify right side
    338,723.43x = 43,706,961,087.24
  5. Step 5: Solve for x
    x = 43,706,961,087.24/338,723.43
  6. Step 6: Final answer
    x = 129,034.36

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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.