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Finding the Fourth Proportional to 436.89, 654.99 and 299.52

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Solution

The fourth proportional to 436.89, 654.99 and 299.52 is: 449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.89 : 654.99 = 299.52 : x
  2. Step 2: Convert to fraction form
    436.89/654.99 = 299.52/x
  3. Step 3: Cross multiply
    436.89x = 654.99 × 299.52
  4. Step 4: Simplify right side
    436.89x = 196,178.58
  5. Step 5: Solve for x
    x = 196,178.58/436.89
  6. Step 6: Final answer
    x = 449.03

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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.