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Finding the Fourth Proportional to 202,110, 278,908.02 and 111,474.42

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Solution

The fourth proportional to 202,110, 278,908.02 and 111,474.42 is: 153,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,110 : 278,908.02 = 111,474.42 : x
  2. Step 2: Convert to fraction form
    202,110/278,908.02 = 111,474.42/x
  3. Step 3: Cross multiply
    202,110x = 278,908.02 × 111,474.42
  4. Step 4: Simplify right side
    202,110x = 31,091,109,762.85
  5. Step 5: Solve for x
    x = 31,091,109,762.85/202,110
  6. Step 6: Final answer
    x = 153,832.61

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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.