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Finding the Fourth Proportional to 317.08, 475.66 and 122.03

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Solution

The fourth proportional to 317.08, 475.66 and 122.03 is: 183.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.08 : 475.66 = 122.03 : x
  2. Step 2: Convert to fraction form
    317.08/475.66 = 122.03/x
  3. Step 3: Cross multiply
    317.08x = 475.66 × 122.03
  4. Step 4: Simplify right side
    317.08x = 58,046.12
  5. Step 5: Solve for x
    x = 58,046.12/317.08
  6. Step 6: Final answer
    x = 183.07

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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.