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Finding the Fourth Proportional to 372.04, 512.40 and 349.36

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Solution

The fourth proportional to 372.04, 512.40 and 349.36 is: 481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.04 : 512.40 = 349.36 : x
  2. Step 2: Convert to fraction form
    372.04/512.40 = 349.36/x
  3. Step 3: Cross multiply
    372.04x = 512.40 × 349.36
  4. Step 4: Simplify right side
    372.04x = 179,012.06
  5. Step 5: Solve for x
    x = 179,012.06/372.04
  6. Step 6: Final answer
    x = 481.16

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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.