Home / 511,272-766,778.40-156,193.92

Finding the Fourth Proportional to 511,272, 766,778.40 and 156,193.92

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Solution

The fourth proportional to 511,272, 766,778.40 and 156,193.92 is: 234,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,272 : 766,778.40 = 156,193.92 : x
  2. Step 2: Convert to fraction form
    511,272/766,778.40 = 156,193.92/x
  3. Step 3: Cross multiply
    511,272x = 766,778.40 × 156,193.92
  4. Step 4: Simplify right side
    511,272x = 119,766,124,067.33
  5. Step 5: Solve for x
    x = 119,766,124,067.33/511,272
  6. Step 6: Final answer
    x = 234,251.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.