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Finding the Fourth Proportional to 273.89, 377.99 and 157.49

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Solution

The fourth proportional to 273.89, 377.99 and 157.49 is: 217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.89 : 377.99 = 157.49 : x
  2. Step 2: Convert to fraction form
    273.89/377.99 = 157.49/x
  3. Step 3: Cross multiply
    273.89x = 377.99 × 157.49
  4. Step 4: Simplify right side
    273.89x = 59,528.86
  5. Step 5: Solve for x
    x = 59,528.86/273.89
  6. Step 6: Final answer
    x = 217.35

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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.