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Finding the Fourth Proportional to 201,618.83, 278,231.78 and 110,972.84

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Solution

The fourth proportional to 201,618.83, 278,231.78 and 110,972.84 is: 153,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,618.83 : 278,231.78 = 110,972.84 : x
  2. Step 2: Convert to fraction form
    201,618.83/278,231.78 = 110,972.84/x
  3. Step 3: Cross multiply
    201,618.83x = 278,231.78 × 110,972.84
  4. Step 4: Simplify right side
    201,618.83x = 30,876,168,858.83
  5. Step 5: Solve for x
    x = 30,876,168,858.83/201,618.83
  6. Step 6: Final answer
    x = 153,141.30

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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.