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Finding the Fourth Proportional to 175.92, 242.84 and 154.32

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Solution

The fourth proportional to 175.92, 242.84 and 154.32 is: 213.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.92 : 242.84 = 154.32 : x
  2. Step 2: Convert to fraction form
    175.92/242.84 = 154.32/x
  3. Step 3: Cross multiply
    175.92x = 242.84 × 154.32
  4. Step 4: Simplify right side
    175.92x = 37,475.07
  5. Step 5: Solve for x
    x = 37,475.07/175.92
  6. Step 6: Final answer
    x = 213.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.