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Finding the Fourth Proportional to 313.32, 432.24 and 182.25

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Solution

The fourth proportional to 313.32, 432.24 and 182.25 is: 251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.32 : 432.24 = 182.25 : x
  2. Step 2: Convert to fraction form
    313.32/432.24 = 182.25/x
  3. Step 3: Cross multiply
    313.32x = 432.24 × 182.25
  4. Step 4: Simplify right side
    313.32x = 78,775.06
  5. Step 5: Solve for x
    x = 78,775.06/313.32
  6. Step 6: Final answer
    x = 251.42

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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.