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Finding the Fourth Proportional to 558.45, 837.77 and 193.14

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Solution

The fourth proportional to 558.45, 837.77 and 193.14 is: 289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.45 : 837.77 = 193.14 : x
  2. Step 2: Convert to fraction form
    558.45/837.77 = 193.14/x
  3. Step 3: Cross multiply
    558.45x = 837.77 × 193.14
  4. Step 4: Simplify right side
    558.45x = 161,805.93
  5. Step 5: Solve for x
    x = 161,805.93/558.45
  6. Step 6: Final answer
    x = 289.74

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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.