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Finding the Fourth Proportional to 558.35, 770.40 and 334.36

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Solution

The fourth proportional to 558.35, 770.40 and 334.36 is: 461.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.35 : 770.40 = 334.36 : x
  2. Step 2: Convert to fraction form
    558.35/770.40 = 334.36/x
  3. Step 3: Cross multiply
    558.35x = 770.40 × 334.36
  4. Step 4: Simplify right side
    558.35x = 257,589.02
  5. Step 5: Solve for x
    x = 257,589.02/558.35
  6. Step 6: Final answer
    x = 461.34

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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.