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Finding the Fourth Proportional to 284.99, 429.44 and 234.76

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Solution

The fourth proportional to 284.99, 429.44 and 234.76 is: 353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.99 : 429.44 = 234.76 : x
  2. Step 2: Convert to fraction form
    284.99/429.44 = 234.76/x
  3. Step 3: Cross multiply
    284.99x = 429.44 × 234.76
  4. Step 4: Simplify right side
    284.99x = 100,815.33
  5. Step 5: Solve for x
    x = 100,815.33/284.99
  6. Step 6: Final answer
    x = 353.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.