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Finding the Fourth Proportional to 266,851.26, 400,325.40 and 126,608.58

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Solution

The fourth proportional to 266,851.26, 400,325.40 and 126,608.58 is: 189,935.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,851.26 : 400,325.40 = 126,608.58 : x
  2. Step 2: Convert to fraction form
    266,851.26/400,325.40 = 126,608.58/x
  3. Step 3: Cross multiply
    266,851.26x = 400,325.40 × 126,608.58
  4. Step 4: Simplify right side
    266,851.26x = 50,684,630,431.93
  5. Step 5: Solve for x
    x = 50,684,630,431.93/266,851.26
  6. Step 6: Final answer
    x = 189,935.89

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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.