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Finding the Third Proportional to 70,609.50 and 155,212.50

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Solution

The third proportional to 70,609.50 and 155,212.50 is: 341,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,609.50 : 155,212.50 = 155,212.50 : x
  2. Step 2: Convert to fraction form
    70,609.50/155,212.50 = 155,212.50/x
  3. Step 3: Cross multiply
    70,609.50x = 155,212.50 × 155,212.50
  4. Step 4: Simplify right side
    70,609.50x = 24,090,920,156.25
  5. Step 5: Solve for x
    x = 24,090,920,156.25/70,609.50
  6. Step 6: Final answer
    x = 341,185.25

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.