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Finding the Fourth Proportional to 275,119.86, 379,490.67 and 198,751.19

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Solution

The fourth proportional to 275,119.86, 379,490.67 and 198,751.19 is: 274,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,119.86 : 379,490.67 = 198,751.19 : x
  2. Step 2: Convert to fraction form
    275,119.86/379,490.67 = 198,751.19/x
  3. Step 3: Cross multiply
    275,119.86x = 379,490.67 × 198,751.19
  4. Step 4: Simplify right side
    275,119.86x = 75,424,222,256.40
  5. Step 5: Solve for x
    x = 75,424,222,256.40/275,119.86
  6. Step 6: Final answer
    x = 274,150.41

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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.