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Finding the Fourth Proportional to 369.59, 551.32 and 308.03

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Solution

The fourth proportional to 369.59, 551.32 and 308.03 is: 459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.59 : 551.32 = 308.03 : x
  2. Step 2: Convert to fraction form
    369.59/551.32 = 308.03/x
  3. Step 3: Cross multiply
    369.59x = 551.32 × 308.03
  4. Step 4: Simplify right side
    369.59x = 169,819.57
  5. Step 5: Solve for x
    x = 169,819.57/369.59
  6. Step 6: Final answer
    x = 459.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.