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Finding the Fourth Proportional to 558.03, 769.96 and 336.98

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Solution

The fourth proportional to 558.03, 769.96 and 336.98 is: 464.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.03 : 769.96 = 336.98 : x
  2. Step 2: Convert to fraction form
    558.03/769.96 = 336.98/x
  3. Step 3: Cross multiply
    558.03x = 769.96 × 336.98
  4. Step 4: Simplify right side
    558.03x = 259,457.27
  5. Step 5: Solve for x
    x = 259,457.27/558.03
  6. Step 6: Final answer
    x = 464.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.