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Finding the Fourth Proportional to 266,816.32, 400,245.60 and 89,324.08

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Solution

The fourth proportional to 266,816.32, 400,245.60 and 89,324.08 is: 133,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,816.32 : 400,245.60 = 89,324.08 : x
  2. Step 2: Convert to fraction form
    266,816.32/400,245.60 = 89,324.08/x
  3. Step 3: Cross multiply
    266,816.32x = 400,245.60 × 89,324.08
  4. Step 4: Simplify right side
    266,816.32x = 35,751,569,994.05
  5. Step 5: Solve for x
    x = 35,751,569,994.05/266,816.32
  6. Step 6: Final answer
    x = 133,993.19

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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.