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Finding the Fourth Proportional to 363.48, 501.15 and 342.42

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Solution

The fourth proportional to 363.48, 501.15 and 342.42 is: 472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.48 : 501.15 = 342.42 : x
  2. Step 2: Convert to fraction form
    363.48/501.15 = 342.42/x
  3. Step 3: Cross multiply
    363.48x = 501.15 × 342.42
  4. Step 4: Simplify right side
    363.48x = 171,603.78
  5. Step 5: Solve for x
    x = 171,603.78/363.48
  6. Step 6: Final answer
    x = 472.11

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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.