Home / 262,716.36-394,132.20-85,241.28

Finding the Fourth Proportional to 262,716.36, 394,132.20 and 85,241.28

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Solution

The fourth proportional to 262,716.36, 394,132.20 and 85,241.28 is: 127,880.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,716.36 : 394,132.20 = 85,241.28 : x
  2. Step 2: Convert to fraction form
    262,716.36/394,132.20 = 85,241.28/x
  3. Step 3: Cross multiply
    262,716.36x = 394,132.20 × 85,241.28
  4. Step 4: Simplify right side
    262,716.36x = 33,596,333,217.22
  5. Step 5: Solve for x
    x = 33,596,333,217.22/262,716.36
  6. Step 6: Final answer
    x = 127,880.63

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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.