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Finding the Fourth Proportional to 272,365.44, 408,266.46 and 103,840.44

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Solution

The fourth proportional to 272,365.44, 408,266.46 and 103,840.44 is: 155,653.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,365.44 : 408,266.46 = 103,840.44 : x
  2. Step 2: Convert to fraction form
    272,365.44/408,266.46 = 103,840.44/x
  3. Step 3: Cross multiply
    272,365.44x = 408,266.46 × 103,840.44
  4. Step 4: Simplify right side
    272,365.44x = 42,394,568,843.64
  5. Step 5: Solve for x
    x = 42,394,568,843.64/272,365.44
  6. Step 6: Final answer
    x = 155,653.26

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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.