Home / 259,835.42-389,763.97-82,338.50

Finding the Fourth Proportional to 259,835.42, 389,763.97 and 82,338.50

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Solution

The fourth proportional to 259,835.42, 389,763.97 and 82,338.50 is: 123,511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,835.42 : 389,763.97 = 82,338.50 : x
  2. Step 2: Convert to fraction form
    259,835.42/389,763.97 = 82,338.50/x
  3. Step 3: Cross multiply
    259,835.42x = 389,763.97 × 82,338.50
  4. Step 4: Simplify right side
    259,835.42x = 32,092,580,643.85
  5. Step 5: Solve for x
    x = 32,092,580,643.85/259,835.42
  6. Step 6: Final answer
    x = 123,511.19

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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.