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Finding the Fourth Proportional to 549.54, 824.15 and 299.34

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Solution

The fourth proportional to 549.54, 824.15 and 299.34 is: 448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.54 : 824.15 = 299.34 : x
  2. Step 2: Convert to fraction form
    549.54/824.15 = 299.34/x
  3. Step 3: Cross multiply
    549.54x = 824.15 × 299.34
  4. Step 4: Simplify right side
    549.54x = 246,697.50
  5. Step 5: Solve for x
    x = 246,697.50/549.54
  6. Step 6: Final answer
    x = 448.92

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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.