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Finding the Fourth Proportional to 349.66, 483.12 and 245.14

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Solution

The fourth proportional to 349.66, 483.12 and 245.14 is: 338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.66 : 483.12 = 245.14 : x
  2. Step 2: Convert to fraction form
    349.66/483.12 = 245.14/x
  3. Step 3: Cross multiply
    349.66x = 483.12 × 245.14
  4. Step 4: Simplify right side
    349.66x = 118,432.04
  5. Step 5: Solve for x
    x = 118,432.04/349.66
  6. Step 6: Final answer
    x = 338.71

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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.