Home / 327,814.20-491,451.30-147,911.40

Finding the Fourth Proportional to 327,814.20, 491,451.30 and 147,911.40

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Solution

The fourth proportional to 327,814.20, 491,451.30 and 147,911.40 is: 221,745.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,814.20 : 491,451.30 = 147,911.40 : x
  2. Step 2: Convert to fraction form
    327,814.20/491,451.30 = 147,911.40/x
  3. Step 3: Cross multiply
    327,814.20x = 491,451.30 × 147,911.40
  4. Step 4: Simplify right side
    327,814.20x = 72,691,249,814.82
  5. Step 5: Solve for x
    x = 72,691,249,814.82/327,814.20
  6. Step 6: Final answer
    x = 221,745.27

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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.