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Finding the Third Proportional to 144,873 and 213,117

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Solution

The third proportional to 144,873 and 213,117 is: 313,508.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,873 : 213,117 = 213,117 : x
  2. Step 2: Convert to fraction form
    144,873/213,117 = 213,117/x
  3. Step 3: Cross multiply
    144,873x = 213,117 × 213,117
  4. Step 4: Simplify right side
    144,873x = 45,418,855,689
  5. Step 5: Solve for x
    x = 45,418,855,689/144,873
  6. Step 6: Final answer
    x = 313,508.08

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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.