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Finding the Fourth Proportional to 302.41, 453.31 and 265.96

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Solution

The fourth proportional to 302.41, 453.31 and 265.96 is: 398.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.41 : 453.31 = 265.96 : x
  2. Step 2: Convert to fraction form
    302.41/453.31 = 265.96/x
  3. Step 3: Cross multiply
    302.41x = 453.31 × 265.96
  4. Step 4: Simplify right side
    302.41x = 120,560.53
  5. Step 5: Solve for x
    x = 120,560.53/302.41
  6. Step 6: Final answer
    x = 398.67

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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.