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Finding the Fourth Proportional to 444.75, 614.60 and 320.82

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Solution

The fourth proportional to 444.75, 614.60 and 320.82 is: 443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.75 : 614.60 = 320.82 : x
  2. Step 2: Convert to fraction form
    444.75/614.60 = 320.82/x
  3. Step 3: Cross multiply
    444.75x = 614.60 × 320.82
  4. Step 4: Simplify right side
    444.75x = 197,175.97
  5. Step 5: Solve for x
    x = 197,175.97/444.75
  6. Step 6: Final answer
    x = 443.34

Related Problems

Find fourth proportional to 222.38, 307.30 and 160.41
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Double scale
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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.