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Finding the Fourth Proportional to 268,231.20, 401,763.60 and 162,866.40

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Solution

The fourth proportional to 268,231.20, 401,763.60 and 162,866.40 is: 243,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,231.20 : 401,763.60 = 162,866.40 : x
  2. Step 2: Convert to fraction form
    268,231.20/401,763.60 = 162,866.40/x
  3. Step 3: Cross multiply
    268,231.20x = 401,763.60 × 162,866.40
  4. Step 4: Simplify right side
    268,231.20x = 65,433,791,183.04
  5. Step 5: Solve for x
    x = 65,433,791,183.04/268,231.20
  6. Step 6: Final answer
    x = 243,945.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.