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Finding the Third Proportional to 136,516 and 213,686.75

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Solution

The third proportional to 136,516 and 213,686.75 is: 334,481.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,516 : 213,686.75 = 213,686.75 : x
  2. Step 2: Convert to fraction form
    136,516/213,686.75 = 213,686.75/x
  3. Step 3: Cross multiply
    136,516x = 213,686.75 × 213,686.75
  4. Step 4: Simplify right side
    136,516x = 45,662,027,125.56
  5. Step 5: Solve for x
    x = 45,662,027,125.56/136,516
  6. Step 6: Final answer
    x = 334,481.14

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.