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Finding the Fourth Proportional to 554.24, 830.61 and 229.43

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Solution

The fourth proportional to 554.24, 830.61 and 229.43 is: 343.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.24 : 830.61 = 229.43 : x
  2. Step 2: Convert to fraction form
    554.24/830.61 = 229.43/x
  3. Step 3: Cross multiply
    554.24x = 830.61 × 229.43
  4. Step 4: Simplify right side
    554.24x = 190,562.70
  5. Step 5: Solve for x
    x = 190,562.70/554.24
  6. Step 6: Final answer
    x = 343.83

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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.