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Finding the Fourth Proportional to 349.46, 482.12 and 225.19

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Solution

The fourth proportional to 349.46, 482.12 and 225.19 is: 310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.46 : 482.12 = 225.19 : x
  2. Step 2: Convert to fraction form
    349.46/482.12 = 225.19/x
  3. Step 3: Cross multiply
    349.46x = 482.12 × 225.19
  4. Step 4: Simplify right side
    349.46x = 108,566.19
  5. Step 5: Solve for x
    x = 108,566.19/349.46
  6. Step 6: Final answer
    x = 310.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.