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Finding the Fourth Proportional to 486.02, 671.01 and 338.60

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Solution

The fourth proportional to 486.02, 671.01 and 338.60 is: 467.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.02 : 671.01 = 338.60 : x
  2. Step 2: Convert to fraction form
    486.02/671.01 = 338.60/x
  3. Step 3: Cross multiply
    486.02x = 671.01 × 338.60
  4. Step 4: Simplify right side
    486.02x = 227,203.99
  5. Step 5: Solve for x
    x = 227,203.99/486.02
  6. Step 6: Final answer
    x = 467.48

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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.