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Finding the Third Proportional to 76,439 and 163,341

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Solution

The third proportional to 76,439 and 163,341 is: 349,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,439 : 163,341 = 163,341 : x
  2. Step 2: Convert to fraction form
    76,439/163,341 = 163,341/x
  3. Step 3: Cross multiply
    76,439x = 163,341 × 163,341
  4. Step 4: Simplify right side
    76,439x = 26,680,282,281
  5. Step 5: Solve for x
    x = 26,680,282,281/76,439
  6. Step 6: Final answer
    x = 349,040.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.