Home / 260,525.82-390,584.59-102,872.28

Finding the Fourth Proportional to 260,525.82, 390,584.59 and 102,872.28

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Solution

The fourth proportional to 260,525.82, 390,584.59 and 102,872.28 is: 154,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,525.82 : 390,584.59 = 102,872.28 : x
  2. Step 2: Convert to fraction form
    260,525.82/390,584.59 = 102,872.28/x
  3. Step 3: Cross multiply
    260,525.82x = 390,584.59 × 102,872.28
  4. Step 4: Simplify right side
    260,525.82x = 40,180,326,791.80
  5. Step 5: Solve for x
    x = 40,180,326,791.80/260,525.82
  6. Step 6: Final answer
    x = 154,227.81

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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.