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Finding the Third Proportional to 120,709 and 177,364

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Solution

The third proportional to 120,709 and 177,364 is: 260,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,709 : 177,364 = 177,364 : x
  2. Step 2: Convert to fraction form
    120,709/177,364 = 177,364/x
  3. Step 3: Cross multiply
    120,709x = 177,364 × 177,364
  4. Step 4: Simplify right side
    120,709x = 31,457,988,496
  5. Step 5: Solve for x
    x = 31,457,988,496/120,709
  6. Step 6: Final answer
    x = 260,610.13

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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.