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Finding the Fourth Proportional to 156.08, 232.74 and 154.64

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Solution

The fourth proportional to 156.08, 232.74 and 154.64 is: 230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.08 : 232.74 = 154.64 : x
  2. Step 2: Convert to fraction form
    156.08/232.74 = 154.64/x
  3. Step 3: Cross multiply
    156.08x = 232.74 × 154.64
  4. Step 4: Simplify right side
    156.08x = 35,990.91
  5. Step 5: Solve for x
    x = 35,990.91/156.08
  6. Step 6: Final answer
    x = 230.59

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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.