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Finding the Fourth Proportional to 188,269.88, 259,814.25 and 103,388.76

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Solution

The fourth proportional to 188,269.88, 259,814.25 and 103,388.76 is: 142,677.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,269.88 : 259,814.25 = 103,388.76 : x
  2. Step 2: Convert to fraction form
    188,269.88/259,814.25 = 103,388.76/x
  3. Step 3: Cross multiply
    188,269.88x = 259,814.25 × 103,388.76
  4. Step 4: Simplify right side
    188,269.88x = 26,861,873,137.83
  5. Step 5: Solve for x
    x = 26,861,873,137.83/188,269.88
  6. Step 6: Final answer
    x = 142,677.49

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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.