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Finding the Fourth Proportional to 193,377.20, 289,720.20 and 165,729.20

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Solution

The fourth proportional to 193,377.20, 289,720.20 and 165,729.20 is: 248,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,377.20 : 289,720.20 = 165,729.20 : x
  2. Step 2: Convert to fraction form
    193,377.20/289,720.20 = 165,729.20/x
  3. Step 3: Cross multiply
    193,377.20x = 289,720.20 × 165,729.20
  4. Step 4: Simplify right side
    193,377.20x = 48,015,096,969.84
  5. Step 5: Solve for x
    x = 48,015,096,969.84/193,377.20
  6. Step 6: Final answer
    x = 248,297.61

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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.