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Finding the Fourth Proportional to 202,860.78, 279,853.54 and 131,263.84

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Solution

The fourth proportional to 202,860.78, 279,853.54 and 131,263.84 is: 181,083.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,860.78 : 279,853.54 = 131,263.84 : x
  2. Step 2: Convert to fraction form
    202,860.78/279,853.54 = 131,263.84/x
  3. Step 3: Cross multiply
    202,860.78x = 279,853.54 × 131,263.84
  4. Step 4: Simplify right side
    202,860.78x = 36,734,650,297.99
  5. Step 5: Solve for x
    x = 36,734,650,297.99/202,860.78
  6. Step 6: Final answer
    x = 181,083.06

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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.