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Finding the Third Proportional to 79,232 and 172,680

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Solution

The third proportional to 79,232 and 172,680 is: 376,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,232 : 172,680 = 172,680 : x
  2. Step 2: Convert to fraction form
    79,232/172,680 = 172,680/x
  3. Step 3: Cross multiply
    79,232x = 172,680 × 172,680
  4. Step 4: Simplify right side
    79,232x = 29,818,382,400
  5. Step 5: Solve for x
    x = 29,818,382,400/79,232
  6. Step 6: Final answer
    x = 376,342.67

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.