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Finding the Fourth Proportional to 188,275.56, 259,807.92 and 111,790.70

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Solution

The fourth proportional to 188,275.56, 259,807.92 and 111,790.70 is: 154,263.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,275.56 : 259,807.92 = 111,790.70 : x
  2. Step 2: Convert to fraction form
    188,275.56/259,807.92 = 111,790.70/x
  3. Step 3: Cross multiply
    188,275.56x = 259,807.92 × 111,790.70
  4. Step 4: Simplify right side
    188,275.56x = 29,044,109,472.65
  5. Step 5: Solve for x
    x = 29,044,109,472.65/188,275.56
  6. Step 6: Final answer
    x = 154,263.83

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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.