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Finding the Fourth Proportional to 303.08, 417.22 and 271.98

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Solution

The fourth proportional to 303.08, 417.22 and 271.98 is: 374.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.08 : 417.22 = 271.98 : x
  2. Step 2: Convert to fraction form
    303.08/417.22 = 271.98/x
  3. Step 3: Cross multiply
    303.08x = 417.22 × 271.98
  4. Step 4: Simplify right side
    303.08x = 113,474.82
  5. Step 5: Solve for x
    x = 113,474.82/303.08
  6. Step 6: Final answer
    x = 374.41

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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.