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Finding the Fourth Proportional to 268,998.60, 403,344.30 and 111,040.20

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Solution

The fourth proportional to 268,998.60, 403,344.30 and 111,040.20 is: 166,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,998.60 : 403,344.30 = 111,040.20 : x
  2. Step 2: Convert to fraction form
    268,998.60/403,344.30 = 111,040.20/x
  3. Step 3: Cross multiply
    268,998.60x = 403,344.30 × 111,040.20
  4. Step 4: Simplify right side
    268,998.60x = 44,787,431,740.86
  5. Step 5: Solve for x
    x = 44,787,431,740.86/268,998.60
  6. Step 6: Final answer
    x = 166,496.90

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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.