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Finding the Fourth Proportional to 483.01, 667.10 and 317.96

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Solution

The fourth proportional to 483.01, 667.10 and 317.96 is: 439.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.01 : 667.10 = 317.96 : x
  2. Step 2: Convert to fraction form
    483.01/667.10 = 317.96/x
  3. Step 3: Cross multiply
    483.01x = 667.10 × 317.96
  4. Step 4: Simplify right side
    483.01x = 212,108.58
  5. Step 5: Solve for x
    x = 212,108.58/483.01
  6. Step 6: Final answer
    x = 439.14

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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.