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Finding the Fourth Proportional to 188,655.88, 260,382.08 and 108,137.33

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Solution

The fourth proportional to 188,655.88, 260,382.08 and 108,137.33 is: 149,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,655.88 : 260,382.08 = 108,137.33 : x
  2. Step 2: Convert to fraction form
    188,655.88/260,382.08 = 108,137.33/x
  3. Step 3: Cross multiply
    188,655.88x = 260,382.08 × 108,137.33
  4. Step 4: Simplify right side
    188,655.88x = 28,157,022,911.05
  5. Step 5: Solve for x
    x = 28,157,022,911.05/188,655.88
  6. Step 6: Final answer
    x = 149,250.70

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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.