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Finding the Fourth Proportional to 483.13, 666.26 and 372.43

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Solution

The fourth proportional to 483.13, 666.26 and 372.43 is: 513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.13 : 666.26 = 372.43 : x
  2. Step 2: Convert to fraction form
    483.13/666.26 = 372.43/x
  3. Step 3: Cross multiply
    483.13x = 666.26 × 372.43
  4. Step 4: Simplify right side
    483.13x = 248,131.88
  5. Step 5: Solve for x
    x = 248,131.88/483.13
  6. Step 6: Final answer
    x = 513.60

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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.