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Finding the Fourth Proportional to 317.85, 475.77 and 236.49

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Solution

The fourth proportional to 317.85, 475.77 and 236.49 is: 353.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.85 : 475.77 = 236.49 : x
  2. Step 2: Convert to fraction form
    317.85/475.77 = 236.49/x
  3. Step 3: Cross multiply
    317.85x = 475.77 × 236.49
  4. Step 4: Simplify right side
    317.85x = 112,514.85
  5. Step 5: Solve for x
    x = 112,514.85/317.85
  6. Step 6: Final answer
    x = 353.99

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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.