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Finding the Third Proportional to 80,539.31 and 174,919.50

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Solution

The third proportional to 80,539.31 and 174,919.50 is: 379,899.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,539.31 : 174,919.50 = 174,919.50 : x
  2. Step 2: Convert to fraction form
    80,539.31/174,919.50 = 174,919.50/x
  3. Step 3: Cross multiply
    80,539.31x = 174,919.50 × 174,919.50
  4. Step 4: Simplify right side
    80,539.31x = 30,596,831,480.25
  5. Step 5: Solve for x
    x = 30,596,831,480.25/80,539.31
  6. Step 6: Final answer
    x = 379,899.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.