Home / 259,834.11-389,747.07-215,366.94

Finding the Fourth Proportional to 259,834.11, 389,747.07 and 215,366.94

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Solution

The fourth proportional to 259,834.11, 389,747.07 and 215,366.94 is: 323,047.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,834.11 : 389,747.07 = 215,366.94 : x
  2. Step 2: Convert to fraction form
    259,834.11/389,747.07 = 215,366.94/x
  3. Step 3: Cross multiply
    259,834.11x = 389,747.07 × 215,366.94
  4. Step 4: Simplify right side
    259,834.11x = 83,938,633,839.87
  5. Step 5: Solve for x
    x = 83,938,633,839.87/259,834.11
  6. Step 6: Final answer
    x = 323,047.02

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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.