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Finding the Fourth Proportional to 202,381.80, 279,285.62 and 111,736.97

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Solution

The fourth proportional to 202,381.80, 279,285.62 and 111,736.97 is: 154,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,381.80 : 279,285.62 = 111,736.97 : x
  2. Step 2: Convert to fraction form
    202,381.80/279,285.62 = 111,736.97/x
  3. Step 3: Cross multiply
    202,381.80x = 279,285.62 × 111,736.97
  4. Step 4: Simplify right side
    202,381.80x = 31,206,529,238.56
  5. Step 5: Solve for x
    x = 31,206,529,238.56/202,381.80
  6. Step 6: Final answer
    x = 154,196.32

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1.5x scale

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.