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Finding the Third Proportional to 38,199 and 90,319.50

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Solution

The third proportional to 38,199 and 90,319.50 is: 213,555.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,199 : 90,319.50 = 90,319.50 : x
  2. Step 2: Convert to fraction form
    38,199/90,319.50 = 90,319.50/x
  3. Step 3: Cross multiply
    38,199x = 90,319.50 × 90,319.50
  4. Step 4: Simplify right side
    38,199x = 8,157,612,080.25
  5. Step 5: Solve for x
    x = 8,157,612,080.25/38,199
  6. Step 6: Final answer
    x = 213,555.64

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.