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Finding the Third Proportional to 79,438.50 and 169,528.50

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Solution

The third proportional to 79,438.50 and 169,528.50 is: 361,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,438.50 : 169,528.50 = 169,528.50 : x
  2. Step 2: Convert to fraction form
    79,438.50/169,528.50 = 169,528.50/x
  3. Step 3: Cross multiply
    79,438.50x = 169,528.50 × 169,528.50
  4. Step 4: Simplify right side
    79,438.50x = 28,739,912,312.25
  5. Step 5: Solve for x
    x = 28,739,912,312.25/79,438.50
  6. Step 6: Final answer
    x = 361,788.20

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.