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Finding the Fourth Proportional to 240.78, 334.23 and 235.02

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Solution

The fourth proportional to 240.78, 334.23 and 235.02 is: 326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.78 : 334.23 = 235.02 : x
  2. Step 2: Convert to fraction form
    240.78/334.23 = 235.02/x
  3. Step 3: Cross multiply
    240.78x = 334.23 × 235.02
  4. Step 4: Simplify right side
    240.78x = 78,550.73
  5. Step 5: Solve for x
    x = 78,550.73/240.78
  6. Step 6: Final answer
    x = 326.23

Related Problems

Find fourth proportional to 120.39, 167.12 and 117.51
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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.