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Finding the Fourth Proportional to 188,808.26, 283,213.13 and 76,490.60

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Solution

The fourth proportional to 188,808.26, 283,213.13 and 76,490.60 is: 114,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,808.26 : 283,213.13 = 76,490.60 : x
  2. Step 2: Convert to fraction form
    188,808.26/283,213.13 = 76,490.60/x
  3. Step 3: Cross multiply
    188,808.26x = 283,213.13 × 76,490.60
  4. Step 4: Simplify right side
    188,808.26x = 21,663,140,443.06
  5. Step 5: Solve for x
    x = 21,663,140,443.06/188,808.26
  6. Step 6: Final answer
    x = 114,736.19

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1.5x scale

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.