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Finding the Fourth Proportional to 444.75, 613.71 and 255.69

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Solution

The fourth proportional to 444.75, 613.71 and 255.69 is: 352.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.75 : 613.71 = 255.69 : x
  2. Step 2: Convert to fraction form
    444.75/613.71 = 255.69/x
  3. Step 3: Cross multiply
    444.75x = 613.71 × 255.69
  4. Step 4: Simplify right side
    444.75x = 156,919.51
  5. Step 5: Solve for x
    x = 156,919.51/444.75
  6. Step 6: Final answer
    x = 352.83

Related Problems

Find fourth proportional to 222.38, 306.86 and 127.85
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Double scale
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1.5x scale

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.