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Finding the Fourth Proportional to 558.10, 770.19 and 336.92

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Solution

The fourth proportional to 558.10, 770.19 and 336.92 is: 464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.10 : 770.19 = 336.92 : x
  2. Step 2: Convert to fraction form
    558.10/770.19 = 336.92/x
  3. Step 3: Cross multiply
    558.10x = 770.19 × 336.92
  4. Step 4: Simplify right side
    558.10x = 259,495.60
  5. Step 5: Solve for x
    x = 259,495.60/558.10
  6. Step 6: Final answer
    x = 464.96

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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.