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Finding the Fourth Proportional to 188,449.67, 260,078.84 and 107,888.69

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Solution

The fourth proportional to 188,449.67, 260,078.84 and 107,888.69 is: 148,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,449.67 : 260,078.84 = 107,888.69 : x
  2. Step 2: Convert to fraction form
    188,449.67/260,078.84 = 107,888.69/x
  3. Step 3: Cross multiply
    188,449.67x = 260,078.84 × 107,888.69
  4. Step 4: Simplify right side
    188,449.67x = 28,059,563,504.48
  5. Step 5: Solve for x
    x = 28,059,563,504.48/188,449.67
  6. Step 6: Final answer
    x = 148,896.86

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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.