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Finding the Fourth Proportional to 313.17, 432.21 and 182.26

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Solution

The fourth proportional to 313.17, 432.21 and 182.26 is: 251.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.17 : 432.21 = 182.26 : x
  2. Step 2: Convert to fraction form
    313.17/432.21 = 182.26/x
  3. Step 3: Cross multiply
    313.17x = 432.21 × 182.26
  4. Step 4: Simplify right side
    313.17x = 78,774.59
  5. Step 5: Solve for x
    x = 78,774.59/313.17
  6. Step 6: Final answer
    x = 251.54

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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.