Home / 339,580.12-509,387.10-129,234.36

Finding the Fourth Proportional to 339,580.12, 509,387.10 and 129,234.36

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Solution

The fourth proportional to 339,580.12, 509,387.10 and 129,234.36 is: 193,857.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,580.12 : 509,387.10 = 129,234.36 : x
  2. Step 2: Convert to fraction form
    339,580.12/509,387.10 = 129,234.36/x
  3. Step 3: Cross multiply
    339,580.12x = 509,387.10 × 129,234.36
  4. Step 4: Simplify right side
    339,580.12x = 65,830,315,860.76
  5. Step 5: Solve for x
    x = 65,830,315,860.76/339,580.12
  6. Step 6: Final answer
    x = 193,857.98

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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.