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Finding the Fourth Proportional to 450,170.72, 674,113.36 and 270,142.96

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Solution

The fourth proportional to 450,170.72, 674,113.36 and 270,142.96 is: 404,528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,170.72 : 674,113.36 = 270,142.96 : x
  2. Step 2: Convert to fraction form
    450,170.72/674,113.36 = 270,142.96/x
  3. Step 3: Cross multiply
    450,170.72x = 674,113.36 × 270,142.96
  4. Step 4: Simplify right side
    450,170.72x = 182,106,978,445.95
  5. Step 5: Solve for x
    x = 182,106,978,445.95/450,170.72
  6. Step 6: Final answer
    x = 404,528.71

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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.