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Finding the Fourth Proportional to 350.44, 524.70 and 328.79

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Solution

The fourth proportional to 350.44, 524.70 and 328.79 is: 492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.44 : 524.70 = 328.79 : x
  2. Step 2: Convert to fraction form
    350.44/524.70 = 328.79/x
  3. Step 3: Cross multiply
    350.44x = 524.70 × 328.79
  4. Step 4: Simplify right side
    350.44x = 172,516.11
  5. Step 5: Solve for x
    x = 172,516.11/350.44
  6. Step 6: Final answer
    x = 492.28

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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.