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Finding the Fourth Proportional to 266,807.54, 400,211.32 and 126,489.62

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Solution

The fourth proportional to 266,807.54, 400,211.32 and 126,489.62 is: 189,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,807.54 : 400,211.32 = 126,489.62 : x
  2. Step 2: Convert to fraction form
    266,807.54/400,211.32 = 126,489.62/x
  3. Step 3: Cross multiply
    266,807.54x = 400,211.32 × 126,489.62
  4. Step 4: Simplify right side
    266,807.54x = 50,622,577,786.50
  5. Step 5: Solve for x
    x = 50,622,577,786.50/266,807.54
  6. Step 6: Final answer
    x = 189,734.43

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1.5x scale

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.