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Finding the Third Proportional to 279,482 and 395,084

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Solution

The third proportional to 279,482 and 395,084 is: 558,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,482 : 395,084 = 395,084 : x
  2. Step 2: Convert to fraction form
    279,482/395,084 = 395,084/x
  3. Step 3: Cross multiply
    279,482x = 395,084 × 395,084
  4. Step 4: Simplify right side
    279,482x = 156,091,367,056
  5. Step 5: Solve for x
    x = 156,091,367,056/279,482
  6. Step 6: Final answer
    x = 558,502.40

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.