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Finding the Fourth Proportional to 558.33, 837.38 and 193.12

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Solution

The fourth proportional to 558.33, 837.38 and 193.12 is: 289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.33 : 837.38 = 193.12 : x
  2. Step 2: Convert to fraction form
    558.33/837.38 = 193.12/x
  3. Step 3: Cross multiply
    558.33x = 837.38 × 193.12
  4. Step 4: Simplify right side
    558.33x = 161,711.12
  5. Step 5: Solve for x
    x = 161,711.12/558.33
  6. Step 6: Final answer
    x = 289.64

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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.