Home / 339,875.24-509,514.78-129,373.16

Finding the Fourth Proportional to 339,875.24, 509,514.78 and 129,373.16

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Solution

The fourth proportional to 339,875.24, 509,514.78 and 129,373.16 is: 193,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,875.24 : 509,514.78 = 129,373.16 : x
  2. Step 2: Convert to fraction form
    339,875.24/509,514.78 = 129,373.16/x
  3. Step 3: Cross multiply
    339,875.24x = 509,514.78 × 129,373.16
  4. Step 4: Simplify right side
    339,875.24x = 65,917,537,155.30
  5. Step 5: Solve for x
    x = 65,917,537,155.30/339,875.24
  6. Step 6: Final answer
    x = 193,946.28

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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.