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Finding the Fourth Proportional to 362.07, 499.66 and 212.72

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Solution

The fourth proportional to 362.07, 499.66 and 212.72 is: 293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.07 : 499.66 = 212.72 : x
  2. Step 2: Convert to fraction form
    362.07/499.66 = 212.72/x
  3. Step 3: Cross multiply
    362.07x = 499.66 × 212.72
  4. Step 4: Simplify right side
    362.07x = 106,288.49
  5. Step 5: Solve for x
    x = 106,288.49/362.07
  6. Step 6: Final answer
    x = 293.56

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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.