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Finding the Third Proportional to 179,197.31 and 390,994.59

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Solution

The third proportional to 179,197.31 and 390,994.59 is: 853,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,197.31 : 390,994.59 = 390,994.59 : x
  2. Step 2: Convert to fraction form
    179,197.31/390,994.59 = 390,994.59/x
  3. Step 3: Cross multiply
    179,197.31x = 390,994.59 × 390,994.59
  4. Step 4: Simplify right side
    179,197.31x = 152,876,772,341.73
  5. Step 5: Solve for x
    x = 152,876,772,341.73/179,197.31
  6. Step 6: Final answer
    x = 853,119.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.