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Finding the Fourth Proportional to 179.63, 247.24 and 153.32

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Solution

The fourth proportional to 179.63, 247.24 and 153.32 is: 211.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.63 : 247.24 = 153.32 : x
  2. Step 2: Convert to fraction form
    179.63/247.24 = 153.32/x
  3. Step 3: Cross multiply
    179.63x = 247.24 × 153.32
  4. Step 4: Simplify right side
    179.63x = 37,905.22
  5. Step 5: Solve for x
    x = 37,905.22/179.63
  6. Step 6: Final answer
    x = 211.02

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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.