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Finding the Fourth Proportional to 273.10, 409.18 and 230.05

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Solution

The fourth proportional to 273.10, 409.18 and 230.05 is: 344.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.10 : 409.18 = 230.05 : x
  2. Step 2: Convert to fraction form
    273.10/409.18 = 230.05/x
  3. Step 3: Cross multiply
    273.10x = 409.18 × 230.05
  4. Step 4: Simplify right side
    273.10x = 94,131.86
  5. Step 5: Solve for x
    x = 94,131.86/273.10
  6. Step 6: Final answer
    x = 344.68

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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.