Home / 259,709.55-389,564.33-231,715.95

Finding the Fourth Proportional to 259,709.55, 389,564.33 and 231,715.95

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Solution

The fourth proportional to 259,709.55, 389,564.33 and 231,715.95 is: 347,573.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,709.55 : 389,564.33 = 231,715.95 : x
  2. Step 2: Convert to fraction form
    259,709.55/389,564.33 = 231,715.95/x
  3. Step 3: Cross multiply
    259,709.55x = 389,564.33 × 231,715.95
  4. Step 4: Simplify right side
    259,709.55x = 90,268,267,653.48
  5. Step 5: Solve for x
    x = 90,268,267,653.48/259,709.55
  6. Step 6: Final answer
    x = 347,573.93

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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.