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Finding the Third Proportional to 156,706 and 338,348

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Solution

The third proportional to 156,706 and 338,348 is: 730,535.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,706 : 338,348 = 338,348 : x
  2. Step 2: Convert to fraction form
    156,706/338,348 = 338,348/x
  3. Step 3: Cross multiply
    156,706x = 338,348 × 338,348
  4. Step 4: Simplify right side
    156,706x = 114,479,369,104
  5. Step 5: Solve for x
    x = 114,479,369,104/156,706
  6. Step 6: Final answer
    x = 730,535.97

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.