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Finding the Third Proportional to 270,752 and 396,886

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Solution

The third proportional to 270,752 and 396,886 is: 581,781.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,752 : 396,886 = 396,886 : x
  2. Step 2: Convert to fraction form
    270,752/396,886 = 396,886/x
  3. Step 3: Cross multiply
    270,752x = 396,886 × 396,886
  4. Step 4: Simplify right side
    270,752x = 157,518,496,996
  5. Step 5: Solve for x
    x = 157,518,496,996/270,752
  6. Step 6: Final answer
    x = 581,781.47

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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.