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Finding the Fourth Proportional to 558.68, 770.74 and 337.64

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Solution

The fourth proportional to 558.68, 770.74 and 337.64 is: 465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.68 : 770.74 = 337.64 : x
  2. Step 2: Convert to fraction form
    558.68/770.74 = 337.64/x
  3. Step 3: Cross multiply
    558.68x = 770.74 × 337.64
  4. Step 4: Simplify right side
    558.68x = 260,232.65
  5. Step 5: Solve for x
    x = 260,232.65/558.68
  6. Step 6: Final answer
    x = 465.80

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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.