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Finding the Third Proportional to 90,949.50 and 212,445

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Solution

The third proportional to 90,949.50 and 212,445 is: 496,241.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,949.50 : 212,445 = 212,445 : x
  2. Step 2: Convert to fraction form
    90,949.50/212,445 = 212,445/x
  3. Step 3: Cross multiply
    90,949.50x = 212,445 × 212,445
  4. Step 4: Simplify right side
    90,949.50x = 45,132,878,025
  5. Step 5: Solve for x
    x = 45,132,878,025/90,949.50
  6. Step 6: Final answer
    x = 496,241.08

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.