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Finding the Fourth Proportional to 317.26, 437.61 and 200.98

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Solution

The fourth proportional to 317.26, 437.61 and 200.98 is: 277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.26 : 437.61 = 200.98 : x
  2. Step 2: Convert to fraction form
    317.26/437.61 = 200.98/x
  3. Step 3: Cross multiply
    317.26x = 437.61 × 200.98
  4. Step 4: Simplify right side
    317.26x = 87,950.86
  5. Step 5: Solve for x
    x = 87,950.86/317.26
  6. Step 6: Final answer
    x = 277.22

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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.