Home / 260,418.24-390,632.09-91,934.46

Finding the Fourth Proportional to 260,418.24, 390,632.09 and 91,934.46

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Solution

The fourth proportional to 260,418.24, 390,632.09 and 91,934.46 is: 137,903.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,418.24 : 390,632.09 = 91,934.46 : x
  2. Step 2: Convert to fraction form
    260,418.24/390,632.09 = 91,934.46/x
  3. Step 3: Cross multiply
    260,418.24x = 390,632.09 × 91,934.46
  4. Step 4: Simplify right side
    260,418.24x = 35,912,549,793.15
  5. Step 5: Solve for x
    x = 35,912,549,793.15/260,418.24
  6. Step 6: Final answer
    x = 137,903.36

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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.