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Finding the Fourth Proportional to 362.30, 499.86 and 306.52

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Solution

The fourth proportional to 362.30, 499.86 and 306.52 is: 422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.30 : 499.86 = 306.52 : x
  2. Step 2: Convert to fraction form
    362.30/499.86 = 306.52/x
  3. Step 3: Cross multiply
    362.30x = 499.86 × 306.52
  4. Step 4: Simplify right side
    362.30x = 153,215.84
  5. Step 5: Solve for x
    x = 153,215.84/362.30
  6. Step 6: Final answer
    x = 422.90

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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.