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Finding the Fourth Proportional to 383.35, 528.96 and 363.89

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Solution

The fourth proportional to 383.35, 528.96 and 363.89 is: 502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.35 : 528.96 = 363.89 : x
  2. Step 2: Convert to fraction form
    383.35/528.96 = 363.89/x
  3. Step 3: Cross multiply
    383.35x = 528.96 × 363.89
  4. Step 4: Simplify right side
    383.35x = 192,485.17
  5. Step 5: Solve for x
    x = 192,485.17/383.35
  6. Step 6: Final answer
    x = 502.11

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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.