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Finding the Fourth Proportional to 366.10, 505.67 and 299.88

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Solution

The fourth proportional to 366.10, 505.67 and 299.88 is: 414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.10 : 505.67 = 299.88 : x
  2. Step 2: Convert to fraction form
    366.10/505.67 = 299.88/x
  3. Step 3: Cross multiply
    366.10x = 505.67 × 299.88
  4. Step 4: Simplify right side
    366.10x = 151,638.82
  5. Step 5: Solve for x
    x = 151,638.82/366.10
  6. Step 6: Final answer
    x = 414.20

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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.