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Finding the Fourth Proportional to 188,293.50, 259,868.07 and 108,805.50

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Solution

The fourth proportional to 188,293.50, 259,868.07 and 108,805.50 is: 150,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,293.50 : 259,868.07 = 108,805.50 : x
  2. Step 2: Convert to fraction form
    188,293.50/259,868.07 = 108,805.50/x
  3. Step 3: Cross multiply
    188,293.50x = 259,868.07 × 108,805.50
  4. Step 4: Simplify right side
    188,293.50x = 28,275,075,290.39
  5. Step 5: Solve for x
    x = 28,275,075,290.39/188,293.50
  6. Step 6: Final answer
    x = 150,164.90

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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.