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Finding the Fourth Proportional to 203,578.44, 280,938.96 and 112,936.20

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Solution

The fourth proportional to 203,578.44, 280,938.96 and 112,936.20 is: 155,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,578.44 : 280,938.96 = 112,936.20 : x
  2. Step 2: Convert to fraction form
    203,578.44/280,938.96 = 112,936.20/x
  3. Step 3: Cross multiply
    203,578.44x = 280,938.96 × 112,936.20
  4. Step 4: Simplify right side
    203,578.44x = 31,728,178,574.35
  5. Step 5: Solve for x
    x = 31,728,178,574.35/203,578.44
  6. Step 6: Final answer
    x = 155,852.35

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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.