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Finding the Fourth Proportional to 202,558.89, 279,542.48 and 111,912.91

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Solution

The fourth proportional to 202,558.89, 279,542.48 and 111,912.91 is: 154,446.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,558.89 : 279,542.48 = 111,912.91 : x
  2. Step 2: Convert to fraction form
    202,558.89/279,542.48 = 111,912.91/x
  3. Step 3: Cross multiply
    202,558.89x = 279,542.48 × 111,912.91
  4. Step 4: Simplify right side
    202,558.89x = 31,284,411,147.00
  5. Step 5: Solve for x
    x = 31,284,411,147.00/202,558.89
  6. Step 6: Final answer
    x = 154,446.01

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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.