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Finding the Fourth Proportional to 154.17, 232.71 and 153.36

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Solution

The fourth proportional to 154.17, 232.71 and 153.36 is: 231.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.17 : 232.71 = 153.36 : x
  2. Step 2: Convert to fraction form
    154.17/232.71 = 153.36/x
  3. Step 3: Cross multiply
    154.17x = 232.71 × 153.36
  4. Step 4: Simplify right side
    154.17x = 35,688.41
  5. Step 5: Solve for x
    x = 35,688.41/154.17
  6. Step 6: Final answer
    x = 231.49

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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.