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Finding the Fourth Proportional to 156.96, 236.44 and 155.52

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Solution

The fourth proportional to 156.96, 236.44 and 155.52 is: 234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.96 : 236.44 = 155.52 : x
  2. Step 2: Convert to fraction form
    156.96/236.44 = 155.52/x
  3. Step 3: Cross multiply
    156.96x = 236.44 × 155.52
  4. Step 4: Simplify right side
    156.96x = 36,771.15
  5. Step 5: Solve for x
    x = 36,771.15/156.96
  6. Step 6: Final answer
    x = 234.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.