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Finding the Fourth Proportional to 336.95, 506.55 and 276.53

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Solution

The fourth proportional to 336.95, 506.55 and 276.53 is: 415.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.95 : 506.55 = 276.53 : x
  2. Step 2: Convert to fraction form
    336.95/506.55 = 276.53/x
  3. Step 3: Cross multiply
    336.95x = 506.55 × 276.53
  4. Step 4: Simplify right side
    336.95x = 140,076.27
  5. Step 5: Solve for x
    x = 140,076.27/336.95
  6. Step 6: Final answer
    x = 415.72

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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.