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Finding the Fourth Proportional to 481.02, 665.36 and 377.13

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Solution

The fourth proportional to 481.02, 665.36 and 377.13 is: 521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.02 : 665.36 = 377.13 : x
  2. Step 2: Convert to fraction form
    481.02/665.36 = 377.13/x
  3. Step 3: Cross multiply
    481.02x = 665.36 × 377.13
  4. Step 4: Simplify right side
    481.02x = 250,927.22
  5. Step 5: Solve for x
    x = 250,927.22/481.02
  6. Step 6: Final answer
    x = 521.66

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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.