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Finding the Fourth Proportional to 273.43, 377.04 and 238.15

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Solution

The fourth proportional to 273.43, 377.04 and 238.15 is: 328.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.43 : 377.04 = 238.15 : x
  2. Step 2: Convert to fraction form
    273.43/377.04 = 238.15/x
  3. Step 3: Cross multiply
    273.43x = 377.04 × 238.15
  4. Step 4: Simplify right side
    273.43x = 89,792.82
  5. Step 5: Solve for x
    x = 89,792.82/273.43
  6. Step 6: Final answer
    x = 328.39

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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.