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Finding the Fourth Proportional to 201,944.67, 278,672.27 and 111,300.36

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Solution

The fourth proportional to 201,944.67, 278,672.27 and 111,300.36 is: 153,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,944.67 : 278,672.27 = 111,300.36 : x
  2. Step 2: Convert to fraction form
    201,944.67/278,672.27 = 111,300.36/x
  3. Step 3: Cross multiply
    201,944.67x = 278,672.27 × 111,300.36
  4. Step 4: Simplify right side
    201,944.67x = 31,016,322,023.15
  5. Step 5: Solve for x
    x = 31,016,322,023.15/201,944.67
  6. Step 6: Final answer
    x = 153,588.22

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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.