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Finding the Fourth Proportional to 188,330.60, 259,910.78 and 107,783.39

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Solution

The fourth proportional to 188,330.60, 259,910.78 and 107,783.39 is: 148,749.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,330.60 : 259,910.78 = 107,783.39 : x
  2. Step 2: Convert to fraction form
    188,330.60/259,910.78 = 107,783.39/x
  3. Step 3: Cross multiply
    188,330.60x = 259,910.78 × 107,783.39
  4. Step 4: Simplify right side
    188,330.60x = 28,014,065,076.80
  5. Step 5: Solve for x
    x = 28,014,065,076.80/188,330.60
  6. Step 6: Final answer
    x = 148,749.41

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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.