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Finding the Fourth Proportional to 188,257.71, 259,798.82 and 103,382.67

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Solution

The fourth proportional to 188,257.71, 259,798.82 and 103,382.67 is: 142,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,257.71 : 259,798.82 = 103,382.67 : x
  2. Step 2: Convert to fraction form
    188,257.71/259,798.82 = 103,382.67/x
  3. Step 3: Cross multiply
    188,257.71x = 259,798.82 × 103,382.67
  4. Step 4: Simplify right side
    188,257.71x = 26,858,695,157.54
  5. Step 5: Solve for x
    x = 26,858,695,157.54/188,257.71
  6. Step 6: Final answer
    x = 142,669.83

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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.