Home / 486,173.30-729,167.60-205,887.38

Finding the Fourth Proportional to 486,173.30, 729,167.60 and 205,887.38

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Solution

The fourth proportional to 486,173.30, 729,167.60 and 205,887.38 is: 308,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,173.30 : 729,167.60 = 205,887.38 : x
  2. Step 2: Convert to fraction form
    486,173.30/729,167.60 = 205,887.38/x
  3. Step 3: Cross multiply
    486,173.30x = 729,167.60 × 205,887.38
  4. Step 4: Simplify right side
    486,173.30x = 150,126,406,744.89
  5. Step 5: Solve for x
    x = 150,126,406,744.89/486,173.30
  6. Step 6: Final answer
    x = 308,791.96

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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.