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Finding the Fourth Proportional to 156.36, 232.83 and 154.54

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Solution

The fourth proportional to 156.36, 232.83 and 154.54 is: 230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.36 : 232.83 = 154.54 : x
  2. Step 2: Convert to fraction form
    156.36/232.83 = 154.54/x
  3. Step 3: Cross multiply
    156.36x = 232.83 × 154.54
  4. Step 4: Simplify right side
    156.36x = 35,981.55
  5. Step 5: Solve for x
    x = 35,981.55/156.36
  6. Step 6: Final answer
    x = 230.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.