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Finding the Fourth Proportional to 202,499.37, 279,447.37 and 111,861.66

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Solution

The fourth proportional to 202,499.37, 279,447.37 and 111,861.66 is: 154,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,499.37 : 279,447.37 = 111,861.66 : x
  2. Step 2: Convert to fraction form
    202,499.37/279,447.37 = 111,861.66/x
  3. Step 3: Cross multiply
    202,499.37x = 279,447.37 × 111,861.66
  4. Step 4: Simplify right side
    202,499.37x = 31,259,446,690.83
  5. Step 5: Solve for x
    x = 31,259,446,690.83/202,499.37
  6. Step 6: Final answer
    x = 154,368.12

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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.