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Finding the Fourth Proportional to 202,205.60, 279,046.36 and 111,565.28

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Solution

The fourth proportional to 202,205.60, 279,046.36 and 111,565.28 is: 153,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,205.60 : 279,046.36 = 111,565.28 : x
  2. Step 2: Convert to fraction form
    202,205.60/279,046.36 = 111,565.28/x
  3. Step 3: Cross multiply
    202,205.60x = 279,046.36 × 111,565.28
  4. Step 4: Simplify right side
    202,205.60x = 31,131,885,286.38
  5. Step 5: Solve for x
    x = 31,131,885,286.38/202,205.60
  6. Step 6: Final answer
    x = 153,961.54

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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.