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Finding the Fourth Proportional to 203,610.78, 281,007.81 and 117,569.54

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Solution

The fourth proportional to 203,610.78, 281,007.81 and 117,569.54 is: 162,260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,610.78 : 281,007.81 = 117,569.54 : x
  2. Step 2: Convert to fraction form
    203,610.78/281,007.81 = 117,569.54/x
  3. Step 3: Cross multiply
    203,610.78x = 281,007.81 × 117,569.54
  4. Step 4: Simplify right side
    203,610.78x = 33,037,959,660.63
  5. Step 5: Solve for x
    x = 33,037,959,660.63/203,610.78
  6. Step 6: Final answer
    x = 162,260.37

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1.5x scale

Why These Related Problems?

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