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Finding the Fourth Proportional to 201,579.62, 278,179.92 and 110,935.56

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Solution

The fourth proportional to 201,579.62, 278,179.92 and 110,935.56 is: 153,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,579.62 : 278,179.92 = 110,935.56 : x
  2. Step 2: Convert to fraction form
    201,579.62/278,179.92 = 110,935.56/x
  3. Step 3: Cross multiply
    201,579.62x = 278,179.92 × 110,935.56
  4. Step 4: Simplify right side
    201,579.62x = 30,860,045,205.96
  5. Step 5: Solve for x
    x = 30,860,045,205.96/201,579.62
  6. Step 6: Final answer
    x = 153,091.10

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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.