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Finding the Fourth Proportional to 339,779.55, 509,351.00 and 114,982.61

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Solution

The fourth proportional to 339,779.55, 509,351.00 and 114,982.61 is: 172,366.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,779.55 : 509,351.00 = 114,982.61 : x
  2. Step 2: Convert to fraction form
    339,779.55/509,351.00 = 114,982.61/x
  3. Step 3: Cross multiply
    339,779.55x = 509,351.00 × 114,982.61
  4. Step 4: Simplify right side
    339,779.55x = 58,566,504,264.44
  5. Step 5: Solve for x
    x = 58,566,504,264.44/339,779.55
  6. Step 6: Final answer
    x = 172,366.18

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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.