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Finding the Fourth Proportional to 188,251.50, 259,788.89 and 103,370.39

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Solution

The fourth proportional to 188,251.50, 259,788.89 and 103,370.39 is: 142,652.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,251.50 : 259,788.89 = 103,370.39 : x
  2. Step 2: Convert to fraction form
    188,251.50/259,788.89 = 103,370.39/x
  3. Step 3: Cross multiply
    188,251.50x = 259,788.89 × 103,370.39
  4. Step 4: Simplify right side
    188,251.50x = 26,854,477,836.45
  5. Step 5: Solve for x
    x = 26,854,477,836.45/188,251.50
  6. Step 6: Final answer
    x = 142,652.13

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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.