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Finding the Fourth Proportional to 460.55, 635.54 and 274.12

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Solution

The fourth proportional to 460.55, 635.54 and 274.12 is: 378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.55 : 635.54 = 274.12 : x
  2. Step 2: Convert to fraction form
    460.55/635.54 = 274.12/x
  3. Step 3: Cross multiply
    460.55x = 635.54 × 274.12
  4. Step 4: Simplify right side
    460.55x = 174,211.27
  5. Step 5: Solve for x
    x = 174,211.27/460.55
  6. Step 6: Final answer
    x = 378.27

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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.