Home / 268,997.20-403,495.80-91,704.40

Finding the Fourth Proportional to 268,997.20, 403,495.80 and 91,704.40

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Solution

The fourth proportional to 268,997.20, 403,495.80 and 91,704.40 is: 137,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,997.20 : 403,495.80 = 91,704.40 : x
  2. Step 2: Convert to fraction form
    268,997.20/403,495.80 = 91,704.40/x
  3. Step 3: Cross multiply
    268,997.20x = 403,495.80 × 91,704.40
  4. Step 4: Simplify right side
    268,997.20x = 37,002,340,241.52
  5. Step 5: Solve for x
    x = 37,002,340,241.52/268,997.20
  6. Step 6: Final answer
    x = 137,556.60

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1.5x scale

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.