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Finding the Third Proportional to 245,864 and 379,712

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Solution

The third proportional to 245,864 and 379,712 is: 586,426.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,864 : 379,712 = 379,712 : x
  2. Step 2: Convert to fraction form
    245,864/379,712 = 379,712/x
  3. Step 3: Cross multiply
    245,864x = 379,712 × 379,712
  4. Step 4: Simplify right side
    245,864x = 144,181,202,944
  5. Step 5: Solve for x
    x = 144,181,202,944/245,864
  6. Step 6: Final answer
    x = 586,426.65

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.