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Finding the Third Proportional to 132,405 and 312,295

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Solution

The third proportional to 132,405 and 312,295 is: 736,589.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,405 : 312,295 = 312,295 : x
  2. Step 2: Convert to fraction form
    132,405/312,295 = 312,295/x
  3. Step 3: Cross multiply
    132,405x = 312,295 × 312,295
  4. Step 4: Simplify right side
    132,405x = 97,528,167,025
  5. Step 5: Solve for x
    x = 97,528,167,025/132,405
  6. Step 6: Final answer
    x = 736,589.76

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.