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Finding the Third Proportional to 72,612 and 156,348

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Solution

The third proportional to 72,612 and 156,348 is: 336,648.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,612 : 156,348 = 156,348 : x
  2. Step 2: Convert to fraction form
    72,612/156,348 = 156,348/x
  3. Step 3: Cross multiply
    72,612x = 156,348 × 156,348
  4. Step 4: Simplify right side
    72,612x = 24,444,697,104
  5. Step 5: Solve for x
    x = 24,444,697,104/72,612
  6. Step 6: Final answer
    x = 336,648.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.