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Finding the Third Proportional to 276,034 and 391,444

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Solution

The third proportional to 276,034 and 391,444 is: 555,107.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,034 : 391,444 = 391,444 : x
  2. Step 2: Convert to fraction form
    276,034/391,444 = 391,444/x
  3. Step 3: Cross multiply
    276,034x = 391,444 × 391,444
  4. Step 4: Simplify right side
    276,034x = 153,228,405,136
  5. Step 5: Solve for x
    x = 153,228,405,136/276,034
  6. Step 6: Final answer
    x = 555,107.00

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.