Home / 339,012.26-508,321.48-128,535.38

Finding the Fourth Proportional to 339,012.26, 508,321.48 and 128,535.38

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Solution

The fourth proportional to 339,012.26, 508,321.48 and 128,535.38 is: 192,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,012.26 : 508,321.48 = 128,535.38 : x
  2. Step 2: Convert to fraction form
    339,012.26/508,321.48 = 128,535.38/x
  3. Step 3: Cross multiply
    339,012.26x = 508,321.48 × 128,535.38
  4. Step 4: Simplify right side
    339,012.26x = 65,337,294,593.96
  5. Step 5: Solve for x
    x = 65,337,294,593.96/339,012.26
  6. Step 6: Final answer
    x = 192,728.41

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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.