Home / 486,167.30-729,158.61-205,881.38

Finding the Fourth Proportional to 486,167.30, 729,158.61 and 205,881.38

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Solution

The fourth proportional to 486,167.30, 729,158.61 and 205,881.38 is: 308,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,167.30 : 729,158.61 = 205,881.38 : x
  2. Step 2: Convert to fraction form
    486,167.30/729,158.61 = 205,881.38/x
  3. Step 3: Cross multiply
    486,167.30x = 729,158.61 × 205,881.38
  4. Step 4: Simplify right side
    486,167.30x = 150,120,180,865.68
  5. Step 5: Solve for x
    x = 150,120,180,865.68/486,167.30
  6. Step 6: Final answer
    x = 308,782.97

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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.