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Finding the Fourth Proportional to 188,293.75, 259,868.42 and 108,805.75

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Solution

The fourth proportional to 188,293.75, 259,868.42 and 108,805.75 is: 150,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,293.75 : 259,868.42 = 108,805.75 : x
  2. Step 2: Convert to fraction form
    188,293.75/259,868.42 = 108,805.75/x
  3. Step 3: Cross multiply
    188,293.75x = 259,868.42 × 108,805.75
  4. Step 4: Simplify right side
    188,293.75x = 28,275,178,339.42
  5. Step 5: Solve for x
    x = 28,275,178,339.42/188,293.75
  6. Step 6: Final answer
    x = 150,165.25

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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.