Home / 328,108.90-491,179.20-194,920.60

Finding the Fourth Proportional to 328,108.90, 491,179.20 and 194,920.60

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Solution

The fourth proportional to 328,108.90, 491,179.20 and 194,920.60 is: 291,796.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,108.90 : 491,179.20 = 194,920.60 : x
  2. Step 2: Convert to fraction form
    328,108.90/491,179.20 = 194,920.60/x
  3. Step 3: Cross multiply
    328,108.90x = 491,179.20 × 194,920.60
  4. Step 4: Simplify right side
    328,108.90x = 95,740,944,371.52
  5. Step 5: Solve for x
    x = 95,740,944,371.52/328,108.90
  6. Step 6: Final answer
    x = 291,796.24

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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.