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Finding the Fourth Proportional to 336.83, 464.40 and 274.55

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Solution

The fourth proportional to 336.83, 464.40 and 274.55 is: 378.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.83 : 464.40 = 274.55 : x
  2. Step 2: Convert to fraction form
    336.83/464.40 = 274.55/x
  3. Step 3: Cross multiply
    336.83x = 464.40 × 274.55
  4. Step 4: Simplify right side
    336.83x = 127,501.02
  5. Step 5: Solve for x
    x = 127,501.02/336.83
  6. Step 6: Final answer
    x = 378.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.