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Finding the Fourth Proportional to 301.31, 451.83 and 93.05

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Solution

The fourth proportional to 301.31, 451.83 and 93.05 is: 139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.31 : 451.83 = 93.05 : x
  2. Step 2: Convert to fraction form
    301.31/451.83 = 93.05/x
  3. Step 3: Cross multiply
    301.31x = 451.83 × 93.05
  4. Step 4: Simplify right side
    301.31x = 42,040.52
  5. Step 5: Solve for x
    x = 42,040.52/301.31
  6. Step 6: Final answer
    x = 139.53

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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.