Home / 260,382.26-390,493.43-91,863.18

Finding the Fourth Proportional to 260,382.26, 390,493.43 and 91,863.18

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Solution

The fourth proportional to 260,382.26, 390,493.43 and 91,863.18 is: 137,766.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,382.26 : 390,493.43 = 91,863.18 : x
  2. Step 2: Convert to fraction form
    260,382.26/390,493.43 = 91,863.18/x
  3. Step 3: Cross multiply
    260,382.26x = 390,493.43 × 91,863.18
  4. Step 4: Simplify right side
    260,382.26x = 35,871,968,478.57
  5. Step 5: Solve for x
    x = 35,871,968,478.57/260,382.26
  6. Step 6: Final answer
    x = 137,766.56

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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.