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Finding the Fourth Proportional to 266,755.47, 400,133.60 and 108,984.07

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Solution

The fourth proportional to 266,755.47, 400,133.60 and 108,984.07 is: 163,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,755.47 : 400,133.60 = 108,984.07 : x
  2. Step 2: Convert to fraction form
    266,755.47/400,133.60 = 108,984.07/x
  3. Step 3: Cross multiply
    266,755.47x = 400,133.60 × 108,984.07
  4. Step 4: Simplify right side
    266,755.47x = 43,608,188,271.75
  5. Step 5: Solve for x
    x = 43,608,188,271.75/266,755.47
  6. Step 6: Final answer
    x = 163,476.27

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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.