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Finding the Third Proportional to 149,080 and 218,868

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Solution

The third proportional to 149,080 and 218,868 is: 321,325.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,080 : 218,868 = 218,868 : x
  2. Step 2: Convert to fraction form
    149,080/218,868 = 218,868/x
  3. Step 3: Cross multiply
    149,080x = 218,868 × 218,868
  4. Step 4: Simplify right side
    149,080x = 47,903,201,424
  5. Step 5: Solve for x
    x = 47,903,201,424/149,080
  6. Step 6: Final answer
    x = 321,325.47

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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.