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Finding the Fourth Proportional to 201,578.75, 278,168.63 and 110,932.39

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Solution

The fourth proportional to 201,578.75, 278,168.63 and 110,932.39 is: 153,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,578.75 : 278,168.63 = 110,932.39 : x
  2. Step 2: Convert to fraction form
    201,578.75/278,168.63 = 110,932.39/x
  3. Step 3: Cross multiply
    201,578.75x = 278,168.63 × 110,932.39
  4. Step 4: Simplify right side
    201,578.75x = 30,857,909,801.27
  5. Step 5: Solve for x
    x = 30,857,909,801.27/201,578.75
  6. Step 6: Final answer
    x = 153,081.16

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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.