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Finding the Fourth Proportional to 310.89, 467.22 and 299.39

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Solution

The fourth proportional to 310.89, 467.22 and 299.39 is: 449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.89 : 467.22 = 299.39 : x
  2. Step 2: Convert to fraction form
    310.89/467.22 = 299.39/x
  3. Step 3: Cross multiply
    310.89x = 467.22 × 299.39
  4. Step 4: Simplify right side
    310.89x = 139,877.91
  5. Step 5: Solve for x
    x = 139,877.91/310.89
  6. Step 6: Final answer
    x = 449.93

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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.