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Finding the Third Proportional to 119,810 and 178,679

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Solution

The third proportional to 119,810 and 178,679 is: 266,473.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,810 : 178,679 = 178,679 : x
  2. Step 2: Convert to fraction form
    119,810/178,679 = 178,679/x
  3. Step 3: Cross multiply
    119,810x = 178,679 × 178,679
  4. Step 4: Simplify right side
    119,810x = 31,926,185,041
  5. Step 5: Solve for x
    x = 31,926,185,041/119,810
  6. Step 6: Final answer
    x = 266,473.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.