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Finding the Fourth Proportional to 334.53, 499.52 and 287.73

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Solution

The fourth proportional to 334.53, 499.52 and 287.73 is: 429.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.53 : 499.52 = 287.73 : x
  2. Step 2: Convert to fraction form
    334.53/499.52 = 287.73/x
  3. Step 3: Cross multiply
    334.53x = 499.52 × 287.73
  4. Step 4: Simplify right side
    334.53x = 143,727.61
  5. Step 5: Solve for x
    x = 143,727.61/334.53
  6. Step 6: Final answer
    x = 429.64

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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.