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Finding the Fourth Proportional to 558.90, 837.78 and 193.44

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Solution

The fourth proportional to 558.90, 837.78 and 193.44 is: 289.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.90 : 837.78 = 193.44 : x
  2. Step 2: Convert to fraction form
    558.90/837.78 = 193.44/x
  3. Step 3: Cross multiply
    558.90x = 837.78 × 193.44
  4. Step 4: Simplify right side
    558.90x = 162,060.16
  5. Step 5: Solve for x
    x = 162,060.16/558.90
  6. Step 6: Final answer
    x = 289.96

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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.