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Finding the Fourth Proportional to 291,096.50, 436,644.75 and 80,734.44

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Solution

The fourth proportional to 291,096.50, 436,644.75 and 80,734.44 is: 121,101.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,096.50 : 436,644.75 = 80,734.44 : x
  2. Step 2: Convert to fraction form
    291,096.50/436,644.75 = 80,734.44/x
  3. Step 3: Cross multiply
    291,096.50x = 436,644.75 × 80,734.44
  4. Step 4: Simplify right side
    291,096.50x = 35,252,269,370.19
  5. Step 5: Solve for x
    x = 35,252,269,370.19/291,096.50
  6. Step 6: Final answer
    x = 121,101.66

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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.