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Finding the Fourth Proportional to 386.04, 532.62 and 349.08

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Solution

The fourth proportional to 386.04, 532.62 and 349.08 is: 481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    386.04 : 532.62 = 349.08 : x
  2. Step 2: Convert to fraction form
    386.04/532.62 = 349.08/x
  3. Step 3: Cross multiply
    386.04x = 532.62 × 349.08
  4. Step 4: Simplify right side
    386.04x = 185,926.99
  5. Step 5: Solve for x
    x = 185,926.99/386.04
  6. Step 6: Final answer
    x = 481.63

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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.