Home / 268,863.20-403,343.40-111,107.60

Finding the Fourth Proportional to 268,863.20, 403,343.40 and 111,107.60

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Solution

The fourth proportional to 268,863.20, 403,343.40 and 111,107.60 is: 166,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,863.20 : 403,343.40 = 111,107.60 : x
  2. Step 2: Convert to fraction form
    268,863.20/403,343.40 = 111,107.60/x
  3. Step 3: Cross multiply
    268,863.20x = 403,343.40 × 111,107.60
  4. Step 4: Simplify right side
    268,863.20x = 44,814,517,149.84
  5. Step 5: Solve for x
    x = 44,814,517,149.84/268,863.20
  6. Step 6: Final answer
    x = 166,681.48

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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.