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Finding the Fourth Proportional to 202,376.91, 279,272.90 and 111,731.03

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Solution

The fourth proportional to 202,376.91, 279,272.90 and 111,731.03 is: 154,184.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,376.91 : 279,272.90 = 111,731.03 : x
  2. Step 2: Convert to fraction form
    202,376.91/279,272.90 = 111,731.03/x
  3. Step 3: Cross multiply
    202,376.91x = 279,272.90 × 111,731.03
  4. Step 4: Simplify right side
    202,376.91x = 31,203,448,768.09
  5. Step 5: Solve for x
    x = 31,203,448,768.09/202,376.91
  6. Step 6: Final answer
    x = 154,184.83

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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.