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Finding the Fourth Proportional to 188,251.55, 259,786.60 and 112,800.05

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Solution

The fourth proportional to 188,251.55, 259,786.60 and 112,800.05 is: 155,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,251.55 : 259,786.60 = 112,800.05 : x
  2. Step 2: Convert to fraction form
    188,251.55/259,786.60 = 112,800.05/x
  3. Step 3: Cross multiply
    188,251.55x = 259,786.60 × 112,800.05
  4. Step 4: Simplify right side
    188,251.55x = 29,303,939,888.40
  5. Step 5: Solve for x
    x = 29,303,939,888.40/188,251.55
  6. Step 6: Final answer
    x = 155,663.74

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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.