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Finding the Fourth Proportional to 301.17, 451.08 and 275.43

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Solution

The fourth proportional to 301.17, 451.08 and 275.43 is: 412.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.17 : 451.08 = 275.43 : x
  2. Step 2: Convert to fraction form
    301.17/451.08 = 275.43/x
  3. Step 3: Cross multiply
    301.17x = 451.08 × 275.43
  4. Step 4: Simplify right side
    301.17x = 124,240.96
  5. Step 5: Solve for x
    x = 124,240.96/301.17
  6. Step 6: Final answer
    x = 412.53

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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.