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Finding the Fourth Proportional to 221,080.44, 305,096.94 and 120,484.92

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Solution

The fourth proportional to 221,080.44, 305,096.94 and 120,484.92 is: 166,272.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,080.44 : 305,096.94 = 120,484.92 : x
  2. Step 2: Convert to fraction form
    221,080.44/305,096.94 = 120,484.92/x
  3. Step 3: Cross multiply
    221,080.44x = 305,096.94 × 120,484.92
  4. Step 4: Simplify right side
    221,080.44x = 36,759,580,408.14
  5. Step 5: Solve for x
    x = 36,759,580,408.14/221,080.44
  6. Step 6: Final answer
    x = 166,272.42

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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.