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Finding the Fourth Proportional to 188,879.68, 260,575.84 and 112,383.48

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Solution

The fourth proportional to 188,879.68, 260,575.84 and 112,383.48 is: 155,042.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,879.68 : 260,575.84 = 112,383.48 : x
  2. Step 2: Convert to fraction form
    188,879.68/260,575.84 = 112,383.48/x
  3. Step 3: Cross multiply
    188,879.68x = 260,575.84 × 112,383.48
  4. Step 4: Simplify right side
    188,879.68x = 29,284,419,703.12
  5. Step 5: Solve for x
    x = 29,284,419,703.12/188,879.68
  6. Step 6: Final answer
    x = 155,042.72

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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.