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Finding the Fourth Proportional to 350.20, 524.70 and 328.60

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Solution

The fourth proportional to 350.20, 524.70 and 328.60 is: 492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.20 : 524.70 = 328.60 : x
  2. Step 2: Convert to fraction form
    350.20/524.70 = 328.60/x
  3. Step 3: Cross multiply
    350.20x = 524.70 × 328.60
  4. Step 4: Simplify right side
    350.20x = 172,416.42
  5. Step 5: Solve for x
    x = 172,416.42/350.20
  6. Step 6: Final answer
    x = 492.34

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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.