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Finding the Fourth Proportional to 273.18, 376.99 and 148.84

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Solution

The fourth proportional to 273.18, 376.99 and 148.84 is: 205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.18 : 376.99 = 148.84 : x
  2. Step 2: Convert to fraction form
    273.18/376.99 = 148.84/x
  3. Step 3: Cross multiply
    273.18x = 376.99 × 148.84
  4. Step 4: Simplify right side
    273.18x = 56,110.45
  5. Step 5: Solve for x
    x = 56,110.45/273.18
  6. Step 6: Final answer
    x = 205.40

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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.