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Finding the Third Proportional to 36,360 and 78,282

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Solution

The third proportional to 36,360 and 78,282 is: 168,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,360 : 78,282 = 78,282 : x
  2. Step 2: Convert to fraction form
    36,360/78,282 = 78,282/x
  3. Step 3: Cross multiply
    36,360x = 78,282 × 78,282
  4. Step 4: Simplify right side
    36,360x = 6,128,071,524
  5. Step 5: Solve for x
    x = 6,128,071,524/36,360
  6. Step 6: Final answer
    x = 168,538.82

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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.