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Finding the Fourth Proportional to 236.16, 354.08 and 155.04

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Solution

The fourth proportional to 236.16, 354.08 and 155.04 is: 232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.16 : 354.08 = 155.04 : x
  2. Step 2: Convert to fraction form
    236.16/354.08 = 155.04/x
  3. Step 3: Cross multiply
    236.16x = 354.08 × 155.04
  4. Step 4: Simplify right side
    236.16x = 54,896.56
  5. Step 5: Solve for x
    x = 54,896.56/236.16
  6. Step 6: Final answer
    x = 232.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.