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Finding the Fourth Proportional to 366.89, 504.60 and 320.30

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Solution

The fourth proportional to 366.89, 504.60 and 320.30 is: 440.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.89 : 504.60 = 320.30 : x
  2. Step 2: Convert to fraction form
    366.89/504.60 = 320.30/x
  3. Step 3: Cross multiply
    366.89x = 504.60 × 320.30
  4. Step 4: Simplify right side
    366.89x = 161,627.09
  5. Step 5: Solve for x
    x = 161,627.09/366.89
  6. Step 6: Final answer
    x = 440.53

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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.