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Finding the Fourth Proportional to 452.59, 678.28 and 246.85

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Solution

The fourth proportional to 452.59, 678.28 and 246.85 is: 369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.59 : 678.28 = 246.85 : x
  2. Step 2: Convert to fraction form
    452.59/678.28 = 246.85/x
  3. Step 3: Cross multiply
    452.59x = 678.28 × 246.85
  4. Step 4: Simplify right side
    452.59x = 167,432.80
  5. Step 5: Solve for x
    x = 167,432.80/452.59
  6. Step 6: Final answer
    x = 369.94

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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.