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Finding the Fourth Proportional to 317.44, 475.80 and 245.08

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Solution

The fourth proportional to 317.44, 475.80 and 245.08 is: 367.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.44 : 475.80 = 245.08 : x
  2. Step 2: Convert to fraction form
    317.44/475.80 = 245.08/x
  3. Step 3: Cross multiply
    317.44x = 475.80 × 245.08
  4. Step 4: Simplify right side
    317.44x = 116,609.06
  5. Step 5: Solve for x
    x = 116,609.06/317.44
  6. Step 6: Final answer
    x = 367.34

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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.