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Finding the Third Proportional to 151,444 and 312,600

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Solution

The third proportional to 151,444 and 312,600 is: 645,246.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,444 : 312,600 = 312,600 : x
  2. Step 2: Convert to fraction form
    151,444/312,600 = 312,600/x
  3. Step 3: Cross multiply
    151,444x = 312,600 × 312,600
  4. Step 4: Simplify right side
    151,444x = 97,718,760,000
  5. Step 5: Solve for x
    x = 97,718,760,000/151,444
  6. Step 6: Final answer
    x = 645,246.82

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.