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Finding the Fourth Proportional to 266,791.36, 400,208.08 and 89,299.02

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Solution

The fourth proportional to 266,791.36, 400,208.08 and 89,299.02 is: 133,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,791.36 : 400,208.08 = 89,299.02 : x
  2. Step 2: Convert to fraction form
    266,791.36/400,208.08 = 89,299.02/x
  3. Step 3: Cross multiply
    266,791.36x = 400,208.08 × 89,299.02
  4. Step 4: Simplify right side
    266,791.36x = 35,738,189,340.08
  5. Step 5: Solve for x
    x = 35,738,189,340.08/266,791.36
  6. Step 6: Final answer
    x = 133,955.57

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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.