Home / 260,236.53-390,357.50-91,725.46

Finding the Fourth Proportional to 260,236.53, 390,357.50 and 91,725.46

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Solution

The fourth proportional to 260,236.53, 390,357.50 and 91,725.46 is: 137,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,236.53 : 390,357.50 = 91,725.46 : x
  2. Step 2: Convert to fraction form
    260,236.53/390,357.50 = 91,725.46/x
  3. Step 3: Cross multiply
    260,236.53x = 390,357.50 × 91,725.46
  4. Step 4: Simplify right side
    260,236.53x = 35,805,719,817.43
  5. Step 5: Solve for x
    x = 35,805,719,817.43/260,236.53
  6. Step 6: Final answer
    x = 137,589.14

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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.