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Finding the Fourth Proportional to 221,112, 331,671.60 and 63,339.84

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Solution

The fourth proportional to 221,112, 331,671.60 and 63,339.84 is: 95,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,112 : 331,671.60 = 63,339.84 : x
  2. Step 2: Convert to fraction form
    221,112/331,671.60 = 63,339.84/x
  3. Step 3: Cross multiply
    221,112x = 331,671.60 × 63,339.84
  4. Step 4: Simplify right side
    221,112x = 21,008,026,076.54
  5. Step 5: Solve for x
    x = 21,008,026,076.54/221,112
  6. Step 6: Final answer
    x = 95,010.79

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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.