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Finding the Third Proportional to 174,934 and 278,490

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Solution

The third proportional to 174,934 and 278,490 is: 443,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,934 : 278,490 = 278,490 : x
  2. Step 2: Convert to fraction form
    174,934/278,490 = 278,490/x
  3. Step 3: Cross multiply
    174,934x = 278,490 × 278,490
  4. Step 4: Simplify right side
    174,934x = 77,556,680,100
  5. Step 5: Solve for x
    x = 77,556,680,100/174,934
  6. Step 6: Final answer
    x = 443,348.23

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.