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Finding the Fourth Proportional to 453.83, 679.76 and 331.82

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Solution

The fourth proportional to 453.83, 679.76 and 331.82 is: 497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.83 : 679.76 = 331.82 : x
  2. Step 2: Convert to fraction form
    453.83/679.76 = 331.82/x
  3. Step 3: Cross multiply
    453.83x = 679.76 × 331.82
  4. Step 4: Simplify right side
    453.83x = 225,556.30
  5. Step 5: Solve for x
    x = 225,556.30/453.83
  6. Step 6: Final answer
    x = 497.01

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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.