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Finding the Fourth Proportional to 266,836.56, 400,254.80 and 126,518.64

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Solution

The fourth proportional to 266,836.56, 400,254.80 and 126,518.64 is: 189,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,836.56 : 400,254.80 = 126,518.64 : x
  2. Step 2: Convert to fraction form
    266,836.56/400,254.80 = 126,518.64/x
  3. Step 3: Cross multiply
    266,836.56x = 400,254.80 × 126,518.64
  4. Step 4: Simplify right side
    266,836.56x = 50,639,692,949.47
  5. Step 5: Solve for x
    x = 50,639,692,949.47/266,836.56
  6. Step 6: Final answer
    x = 189,777.94

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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.