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Finding the Fourth Proportional to 468.12, 701.82 and 285.42

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Solution

The fourth proportional to 468.12, 701.82 and 285.42 is: 427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.12 : 701.82 = 285.42 : x
  2. Step 2: Convert to fraction form
    468.12/701.82 = 285.42/x
  3. Step 3: Cross multiply
    468.12x = 701.82 × 285.42
  4. Step 4: Simplify right side
    468.12x = 200,313.46
  5. Step 5: Solve for x
    x = 200,313.46/468.12
  6. Step 6: Final answer
    x = 427.91

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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.