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Finding the Third Proportional to 154,074 and 331,143

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Solution

The third proportional to 154,074 and 331,143 is: 711,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,074 : 331,143 = 331,143 : x
  2. Step 2: Convert to fraction form
    154,074/331,143 = 331,143/x
  3. Step 3: Cross multiply
    154,074x = 331,143 × 331,143
  4. Step 4: Simplify right side
    154,074x = 109,655,686,449
  5. Step 5: Solve for x
    x = 109,655,686,449/154,074
  6. Step 6: Final answer
    x = 711,707.92

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.