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Finding the Fourth Proportional to 317.39, 476.01 and 134.87

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Solution

The fourth proportional to 317.39, 476.01 and 134.87 is: 202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.39 : 476.01 = 134.87 : x
  2. Step 2: Convert to fraction form
    317.39/476.01 = 134.87/x
  3. Step 3: Cross multiply
    317.39x = 476.01 × 134.87
  4. Step 4: Simplify right side
    317.39x = 64,197.09
  5. Step 5: Solve for x
    x = 64,197.09/317.39
  6. Step 6: Final answer
    x = 202.27

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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.