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Finding the Fourth Proportional to 339,517.12, 508,832.88 and 189,751.36

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Solution

The fourth proportional to 339,517.12, 508,832.88 and 189,751.36 is: 284,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,517.12 : 508,832.88 = 189,751.36 : x
  2. Step 2: Convert to fraction form
    339,517.12/508,832.88 = 189,751.36/x
  3. Step 3: Cross multiply
    339,517.12x = 508,832.88 × 189,751.36
  4. Step 4: Simplify right side
    339,517.12x = 96,551,730,992.72
  5. Step 5: Solve for x
    x = 96,551,730,992.72/339,517.12
  6. Step 6: Final answer
    x = 284,379.57

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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.