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Finding the Fourth Proportional to 550.10, 824.59 and 306.58

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Solution

The fourth proportional to 550.10, 824.59 and 306.58 is: 459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.10 : 824.59 = 306.58 : x
  2. Step 2: Convert to fraction form
    550.10/824.59 = 306.58/x
  3. Step 3: Cross multiply
    550.10x = 824.59 × 306.58
  4. Step 4: Simplify right side
    550.10x = 252,802.80
  5. Step 5: Solve for x
    x = 252,802.80/550.10
  6. Step 6: Final answer
    x = 459.56

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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.