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Finding the Fourth Proportional to 351.56, 527.25 and 186.81

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Solution

The fourth proportional to 351.56, 527.25 and 186.81 is: 280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.56 : 527.25 = 186.81 : x
  2. Step 2: Convert to fraction form
    351.56/527.25 = 186.81/x
  3. Step 3: Cross multiply
    351.56x = 527.25 × 186.81
  4. Step 4: Simplify right side
    351.56x = 98,495.57
  5. Step 5: Solve for x
    x = 98,495.57/351.56
  6. Step 6: Final answer
    x = 280.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.