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Finding the Fourth Proportional to 339,496.03, 509,165.03 and 126,364.31

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Solution

The fourth proportional to 339,496.03, 509,165.03 and 126,364.31 is: 189,517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,496.03 : 509,165.03 = 126,364.31 : x
  2. Step 2: Convert to fraction form
    339,496.03/509,165.03 = 126,364.31/x
  3. Step 3: Cross multiply
    339,496.03x = 509,165.03 × 126,364.31
  4. Step 4: Simplify right side
    339,496.03x = 64,340,290,235.59
  5. Step 5: Solve for x
    x = 64,340,290,235.59/339,496.03
  6. Step 6: Final answer
    x = 189,517.06

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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.