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Finding the Fourth Proportional to 362.89, 499.89 and 310.27

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Solution

The fourth proportional to 362.89, 499.89 and 310.27 is: 427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.89 : 499.89 = 310.27 : x
  2. Step 2: Convert to fraction form
    362.89/499.89 = 310.27/x
  3. Step 3: Cross multiply
    362.89x = 499.89 × 310.27
  4. Step 4: Simplify right side
    362.89x = 155,100.87
  5. Step 5: Solve for x
    x = 155,100.87/362.89
  6. Step 6: Final answer
    x = 427.40

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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.