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Finding the Fourth Proportional to 202,857.94, 279,849.70 and 131,261.10

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Solution

The fourth proportional to 202,857.94, 279,849.70 and 131,261.10 is: 181,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,857.94 : 279,849.70 = 131,261.10 : x
  2. Step 2: Convert to fraction form
    202,857.94/279,849.70 = 131,261.10/x
  3. Step 3: Cross multiply
    202,857.94x = 279,849.70 × 131,261.10
  4. Step 4: Simplify right side
    202,857.94x = 36,733,379,456.67
  5. Step 5: Solve for x
    x = 36,733,379,456.67/202,857.94
  6. Step 6: Final answer
    x = 181,079.33

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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.