Home / 419,132.14-628,727.37-138,846.22

Finding the Fourth Proportional to 419,132.14, 628,727.37 and 138,846.22

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Solution

The fourth proportional to 419,132.14, 628,727.37 and 138,846.22 is: 208,278.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,132.14 : 628,727.37 = 138,846.22 : x
  2. Step 2: Convert to fraction form
    419,132.14/628,727.37 = 138,846.22/x
  3. Step 3: Cross multiply
    419,132.14x = 628,727.37 × 138,846.22
  4. Step 4: Simplify right side
    419,132.14x = 87,296,418,735.04
  5. Step 5: Solve for x
    x = 87,296,418,735.04/419,132.14
  6. Step 6: Final answer
    x = 208,278.99

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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.