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Finding the Fourth Proportional to 275,334.54, 412,914.30 and 187,154.70

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Solution

The fourth proportional to 275,334.54, 412,914.30 and 187,154.70 is: 280,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,334.54 : 412,914.30 = 187,154.70 : x
  2. Step 2: Convert to fraction form
    275,334.54/412,914.30 = 187,154.70/x
  3. Step 3: Cross multiply
    275,334.54x = 412,914.30 × 187,154.70
  4. Step 4: Simplify right side
    275,334.54x = 77,278,851,942.21
  5. Step 5: Solve for x
    x = 77,278,851,942.21/275,334.54
  6. Step 6: Final answer
    x = 280,672.57

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1.5x scale

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.