Home / 328,140.90-491,227.20-194,952.60

Finding the Fourth Proportional to 328,140.90, 491,227.20 and 194,952.60

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Solution

The fourth proportional to 328,140.90, 491,227.20 and 194,952.60 is: 291,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,140.90 : 491,227.20 = 194,952.60 : x
  2. Step 2: Convert to fraction form
    328,140.90/491,227.20 = 194,952.60/x
  3. Step 3: Cross multiply
    328,140.90x = 491,227.20 × 194,952.60
  4. Step 4: Simplify right side
    328,140.90x = 95,766,019,830.72
  5. Step 5: Solve for x
    x = 95,766,019,830.72/328,140.90
  6. Step 6: Final answer
    x = 291,844.20

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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.