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Finding the Third Proportional to 180,259 and 417,288

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Solution

The third proportional to 180,259 and 417,288 is: 965,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,259 : 417,288 = 417,288 : x
  2. Step 2: Convert to fraction form
    180,259/417,288 = 417,288/x
  3. Step 3: Cross multiply
    180,259x = 417,288 × 417,288
  4. Step 4: Simplify right side
    180,259x = 174,129,274,944
  5. Step 5: Solve for x
    x = 174,129,274,944/180,259
  6. Step 6: Final answer
    x = 965,994.90

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.