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Finding the Third Proportional to 70,515.56 and 155,023.88

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Solution

The third proportional to 70,515.56 and 155,023.88 is: 340,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.56 : 155,023.88 = 155,023.88 : x
  2. Step 2: Convert to fraction form
    70,515.56/155,023.88 = 155,023.88/x
  3. Step 3: Cross multiply
    70,515.56x = 155,023.88 × 155,023.88
  4. Step 4: Simplify right side
    70,515.56x = 24,032,401,820.02
  5. Step 5: Solve for x
    x = 24,032,401,820.02/70,515.56
  6. Step 6: Final answer
    x = 340,809.90

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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.