Home / 260,361.26-390,550.51-89,581.32

Finding the Fourth Proportional to 260,361.26, 390,550.51 and 89,581.32

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Solution

The fourth proportional to 260,361.26, 390,550.51 and 89,581.32 is: 134,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,361.26 : 390,550.51 = 89,581.32 : x
  2. Step 2: Convert to fraction form
    260,361.26/390,550.51 = 89,581.32/x
  3. Step 3: Cross multiply
    260,361.26x = 390,550.51 × 89,581.32
  4. Step 4: Simplify right side
    260,361.26x = 34,986,029,988.52
  5. Step 5: Solve for x
    x = 34,986,029,988.52/260,361.26
  6. Step 6: Final answer
    x = 134,374.95

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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.