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Finding the Third Proportional to 199,532 and 408,386

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Solution

The third proportional to 199,532 and 408,386 is: 835,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,532 : 408,386 = 408,386 : x
  2. Step 2: Convert to fraction form
    199,532/408,386 = 408,386/x
  3. Step 3: Cross multiply
    199,532x = 408,386 × 408,386
  4. Step 4: Simplify right side
    199,532x = 166,779,124,996
  5. Step 5: Solve for x
    x = 166,779,124,996/199,532
  6. Step 6: Final answer
    x = 835,851.52

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.