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Finding the Fourth Proportional to 313.13, 432.09 and 182.12

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Solution

The fourth proportional to 313.13, 432.09 and 182.12 is: 251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.13 : 432.09 = 182.12 : x
  2. Step 2: Convert to fraction form
    313.13/432.09 = 182.12/x
  3. Step 3: Cross multiply
    313.13x = 432.09 × 182.12
  4. Step 4: Simplify right side
    313.13x = 78,692.23
  5. Step 5: Solve for x
    x = 78,692.23/313.13
  6. Step 6: Final answer
    x = 251.31

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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.