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Finding the Fourth Proportional to 284.25, 427.32 and 227.19

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Solution

The fourth proportional to 284.25, 427.32 and 227.19 is: 341.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.25 : 427.32 = 227.19 : x
  2. Step 2: Convert to fraction form
    284.25/427.32 = 227.19/x
  3. Step 3: Cross multiply
    284.25x = 427.32 × 227.19
  4. Step 4: Simplify right side
    284.25x = 97,082.83
  5. Step 5: Solve for x
    x = 97,082.83/284.25
  6. Step 6: Final answer
    x = 341.54

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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.