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Finding the Fourth Proportional to 203,208.26, 280,427.37 and 112,570.09

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Solution

The fourth proportional to 203,208.26, 280,427.37 and 112,570.09 is: 155,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,208.26 : 280,427.37 = 112,570.09 : x
  2. Step 2: Convert to fraction form
    203,208.26/280,427.37 = 112,570.09/x
  3. Step 3: Cross multiply
    203,208.26x = 280,427.37 × 112,570.09
  4. Step 4: Simplify right side
    203,208.26x = 31,567,734,339.21
  5. Step 5: Solve for x
    x = 31,567,734,339.21/203,208.26
  6. Step 6: Final answer
    x = 155,346.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.