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Finding the Fourth Proportional to 188,285.68, 282,467.40 and 55,170.28

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Solution

The fourth proportional to 188,285.68, 282,467.40 and 55,170.28 is: 82,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,285.68 : 282,467.40 = 55,170.28 : x
  2. Step 2: Convert to fraction form
    188,285.68/282,467.40 = 55,170.28/x
  3. Step 3: Cross multiply
    188,285.68x = 282,467.40 × 55,170.28
  4. Step 4: Simplify right side
    188,285.68x = 15,583,805,548.87
  5. Step 5: Solve for x
    x = 15,583,805,548.87/188,285.68
  6. Step 6: Final answer
    x = 82,766.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.