Home / 259,409.14-386,534.80-231,111.75

Finding the Fourth Proportional to 259,409.14, 386,534.80 and 231,111.75

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Solution

The fourth proportional to 259,409.14, 386,534.80 and 231,111.75 is: 344,370.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,409.14 : 386,534.80 = 231,111.75 : x
  2. Step 2: Convert to fraction form
    259,409.14/386,534.80 = 231,111.75/x
  3. Step 3: Cross multiply
    259,409.14x = 386,534.80 × 231,111.75
  4. Step 4: Simplify right side
    259,409.14x = 89,332,733,486.12
  5. Step 5: Solve for x
    x = 89,332,733,486.12/259,409.14
  6. Step 6: Final answer
    x = 344,370.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.