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Finding the Fourth Proportional to 188,291.50, 259,728.16 and 111,760.17

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Solution

The fourth proportional to 188,291.50, 259,728.16 and 111,760.17 is: 154,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,291.50 : 259,728.16 = 111,760.17 : x
  2. Step 2: Convert to fraction form
    188,291.50/259,728.16 = 111,760.17/x
  3. Step 3: Cross multiply
    188,291.50x = 259,728.16 × 111,760.17
  4. Step 4: Simplify right side
    188,291.50x = 29,027,263,315.39
  5. Step 5: Solve for x
    x = 29,027,263,315.39/188,291.50
  6. Step 6: Final answer
    x = 154,161.30

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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.