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Finding the Fourth Proportional to 155.32, 231.58 and 152.58

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Solution

The fourth proportional to 155.32, 231.58 and 152.58 is: 227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.32 : 231.58 = 152.58 : x
  2. Step 2: Convert to fraction form
    155.32/231.58 = 152.58/x
  3. Step 3: Cross multiply
    155.32x = 231.58 × 152.58
  4. Step 4: Simplify right side
    155.32x = 35,335.54
  5. Step 5: Solve for x
    x = 35,335.54/155.32
  6. Step 6: Final answer
    x = 227.51

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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.