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Finding the Fourth Proportional to 202,339.45, 279,229.35 and 111,693.73

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Solution

The fourth proportional to 202,339.45, 279,229.35 and 111,693.73 is: 154,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,339.45 : 279,229.35 = 111,693.73 : x
  2. Step 2: Convert to fraction form
    202,339.45/279,229.35 = 111,693.73/x
  3. Step 3: Cross multiply
    202,339.45x = 279,229.35 × 111,693.73
  4. Step 4: Simplify right side
    202,339.45x = 31,188,167,626.98
  5. Step 5: Solve for x
    x = 31,188,167,626.98/202,339.45
  6. Step 6: Final answer
    x = 154,137.85

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1.5x scale

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.