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Finding the Fourth Proportional to 363.72, 542.04 and 355.08

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Solution

The fourth proportional to 363.72, 542.04 and 355.08 is: 529.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.72 : 542.04 = 355.08 : x
  2. Step 2: Convert to fraction form
    363.72/542.04 = 355.08/x
  3. Step 3: Cross multiply
    363.72x = 542.04 × 355.08
  4. Step 4: Simplify right side
    363.72x = 192,467.56
  5. Step 5: Solve for x
    x = 192,467.56/363.72
  6. Step 6: Final answer
    x = 529.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.