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Finding the Fourth Proportional to 346.24, 519.48 and 320.96

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Solution

The fourth proportional to 346.24, 519.48 and 320.96 is: 481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.24 : 519.48 = 320.96 : x
  2. Step 2: Convert to fraction form
    346.24/519.48 = 320.96/x
  3. Step 3: Cross multiply
    346.24x = 519.48 × 320.96
  4. Step 4: Simplify right side
    346.24x = 166,733.60
  5. Step 5: Solve for x
    x = 166,733.60/346.24
  6. Step 6: Final answer
    x = 481.55

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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.