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Finding the Fourth Proportional to 317.01, 437.60 and 200.55

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Solution

The fourth proportional to 317.01, 437.60 and 200.55 is: 276.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.01 : 437.60 = 200.55 : x
  2. Step 2: Convert to fraction form
    317.01/437.60 = 200.55/x
  3. Step 3: Cross multiply
    317.01x = 437.60 × 200.55
  4. Step 4: Simplify right side
    317.01x = 87,760.68
  5. Step 5: Solve for x
    x = 87,760.68/317.01
  6. Step 6: Final answer
    x = 276.84

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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.