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Finding the Fourth Proportional to 460.65, 635.60 and 274.11

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Solution

The fourth proportional to 460.65, 635.60 and 274.11 is: 378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.65 : 635.60 = 274.11 : x
  2. Step 2: Convert to fraction form
    460.65/635.60 = 274.11/x
  3. Step 3: Cross multiply
    460.65x = 635.60 × 274.11
  4. Step 4: Simplify right side
    460.65x = 174,222.95
  5. Step 5: Solve for x
    x = 174,222.95/460.65
  6. Step 6: Final answer
    x = 378.21

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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.