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Finding the Fourth Proportional to 322.75, 445.44 and 235.54

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Solution

The fourth proportional to 322.75, 445.44 and 235.54 is: 325.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.75 : 445.44 = 235.54 : x
  2. Step 2: Convert to fraction form
    322.75/445.44 = 235.54/x
  3. Step 3: Cross multiply
    322.75x = 445.44 × 235.54
  4. Step 4: Simplify right side
    322.75x = 104,918.94
  5. Step 5: Solve for x
    x = 104,918.94/322.75
  6. Step 6: Final answer
    x = 325.08

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Find fourth proportional to 161.38, 222.72 and 117.77
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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.