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Finding the Fourth Proportional to 315.44, 435.36 and 182.72

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Solution

The fourth proportional to 315.44, 435.36 and 182.72 is: 252.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.44 : 435.36 = 182.72 : x
  2. Step 2: Convert to fraction form
    315.44/435.36 = 182.72/x
  3. Step 3: Cross multiply
    315.44x = 435.36 × 182.72
  4. Step 4: Simplify right side
    315.44x = 79,548.98
  5. Step 5: Solve for x
    x = 79,548.98/315.44
  6. Step 6: Final answer
    x = 252.18

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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.