Home / 259,849.17-389,784.75-82,352.25

Finding the Fourth Proportional to 259,849.17, 389,784.75 and 82,352.25

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Solution

The fourth proportional to 259,849.17, 389,784.75 and 82,352.25 is: 123,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,849.17 : 389,784.75 = 82,352.25 : x
  2. Step 2: Convert to fraction form
    259,849.17/389,784.75 = 82,352.25/x
  3. Step 3: Cross multiply
    259,849.17x = 389,784.75 × 82,352.25
  4. Step 4: Simplify right side
    259,849.17x = 32,099,651,178.19
  5. Step 5: Solve for x
    x = 32,099,651,178.19/259,849.17
  6. Step 6: Final answer
    x = 123,531.86

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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.