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Finding the Fourth Proportional to 558.84, 838.31 and 229.70

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Solution

The fourth proportional to 558.84, 838.31 and 229.70 is: 344.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.84 : 838.31 = 229.70 : x
  2. Step 2: Convert to fraction form
    558.84/838.31 = 229.70/x
  3. Step 3: Cross multiply
    558.84x = 838.31 × 229.70
  4. Step 4: Simplify right side
    558.84x = 192,559.81
  5. Step 5: Solve for x
    x = 192,559.81/558.84
  6. Step 6: Final answer
    x = 344.57

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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.