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Finding the Third Proportional to 191,278 and 417,548

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Solution

The third proportional to 191,278 and 417,548 is: 911,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,278 : 417,548 = 417,548 : x
  2. Step 2: Convert to fraction form
    191,278/417,548 = 417,548/x
  3. Step 3: Cross multiply
    191,278x = 417,548 × 417,548
  4. Step 4: Simplify right side
    191,278x = 174,346,332,304
  5. Step 5: Solve for x
    x = 174,346,332,304/191,278
  6. Step 6: Final answer
    x = 911,481.36

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.