Home / 339,889.24-509,535.76-129,387.16

Finding the Fourth Proportional to 339,889.24, 509,535.76 and 129,387.16

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Solution

The fourth proportional to 339,889.24, 509,535.76 and 129,387.16 is: 193,967.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,889.24 : 509,535.76 = 129,387.16 : x
  2. Step 2: Convert to fraction form
    339,889.24/509,535.76 = 129,387.16/x
  3. Step 3: Cross multiply
    339,889.24x = 509,535.76 × 129,387.16
  4. Step 4: Simplify right side
    339,889.24x = 65,927,384,904.84
  5. Step 5: Solve for x
    x = 65,927,384,904.84/339,889.24
  6. Step 6: Final answer
    x = 193,967.26

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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.