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Finding the Fourth Proportional to 623.05, 932.82 and 329.89

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Solution

The fourth proportional to 623.05, 932.82 and 329.89 is: 493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.05 : 932.82 = 329.89 : x
  2. Step 2: Convert to fraction form
    623.05/932.82 = 329.89/x
  3. Step 3: Cross multiply
    623.05x = 932.82 × 329.89
  4. Step 4: Simplify right side
    623.05x = 307,727.99
  5. Step 5: Solve for x
    x = 307,727.99/623.05
  6. Step 6: Final answer
    x = 493.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.