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Finding the Fourth Proportional to 401.49, 603.72 and 310.41

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Solution

The fourth proportional to 401.49, 603.72 and 310.41 is: 466.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.49 : 603.72 = 310.41 : x
  2. Step 2: Convert to fraction form
    401.49/603.72 = 310.41/x
  3. Step 3: Cross multiply
    401.49x = 603.72 × 310.41
  4. Step 4: Simplify right side
    401.49x = 187,400.73
  5. Step 5: Solve for x
    x = 187,400.73/401.49
  6. Step 6: Final answer
    x = 466.76

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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.