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Finding the Third Proportional to 213,691.50 and 338,374.50

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Solution

The third proportional to 213,691.50 and 338,374.50 is: 535,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,691.50 : 338,374.50 = 338,374.50 : x
  2. Step 2: Convert to fraction form
    213,691.50/338,374.50 = 338,374.50/x
  3. Step 3: Cross multiply
    213,691.50x = 338,374.50 × 338,374.50
  4. Step 4: Simplify right side
    213,691.50x = 114,497,302,250.25
  5. Step 5: Solve for x
    x = 114,497,302,250.25/213,691.50
  6. Step 6: Final answer
    x = 535,806.54

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.