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Finding the Fourth Proportional to 453.33, 682.61 and 402.30

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Solution

The fourth proportional to 453.33, 682.61 and 402.30 is: 605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.33 : 682.61 = 402.30 : x
  2. Step 2: Convert to fraction form
    453.33/682.61 = 402.30/x
  3. Step 3: Cross multiply
    453.33x = 682.61 × 402.30
  4. Step 4: Simplify right side
    453.33x = 274,611.99
  5. Step 5: Solve for x
    x = 274,611.99/453.33
  6. Step 6: Final answer
    x = 605.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.