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Finding the Third Proportional to 120,616.28 and 177,416.05

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Solution

The third proportional to 120,616.28 and 177,416.05 is: 260,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,616.28 : 177,416.05 = 177,416.05 : x
  2. Step 2: Convert to fraction form
    120,616.28/177,416.05 = 177,416.05/x
  3. Step 3: Cross multiply
    120,616.28x = 177,416.05 × 177,416.05
  4. Step 4: Simplify right side
    120,616.28x = 31,476,455,074.82
  5. Step 5: Solve for x
    x = 31,476,455,074.82/120,616.28
  6. Step 6: Final answer
    x = 260,963.58

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.