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Finding the Fourth Proportional to 236.40, 328.50 and 235.44

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Solution

The fourth proportional to 236.40, 328.50 and 235.44 is: 327.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.40 : 328.50 = 235.44 : x
  2. Step 2: Convert to fraction form
    236.40/328.50 = 235.44/x
  3. Step 3: Cross multiply
    236.40x = 328.50 × 235.44
  4. Step 4: Simplify right side
    236.40x = 77,342.04
  5. Step 5: Solve for x
    x = 77,342.04/236.40
  6. Step 6: Final answer
    x = 327.17

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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.