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Finding the Fourth Proportional to 382.98, 573.48 and 245.64

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Solution

The fourth proportional to 382.98, 573.48 and 245.64 is: 367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.98 : 573.48 = 245.64 : x
  2. Step 2: Convert to fraction form
    382.98/573.48 = 245.64/x
  3. Step 3: Cross multiply
    382.98x = 573.48 × 245.64
  4. Step 4: Simplify right side
    382.98x = 140,869.63
  5. Step 5: Solve for x
    x = 140,869.63/382.98
  6. Step 6: Final answer
    x = 367.83

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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.