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Finding the Fourth Proportional to 275.04, 412.72 and 274.08

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Solution

The fourth proportional to 275.04, 412.72 and 274.08 is: 411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.04 : 412.72 = 274.08 : x
  2. Step 2: Convert to fraction form
    275.04/412.72 = 274.08/x
  3. Step 3: Cross multiply
    275.04x = 412.72 × 274.08
  4. Step 4: Simplify right side
    275.04x = 113,118.30
  5. Step 5: Solve for x
    x = 113,118.30/275.04
  6. Step 6: Final answer
    x = 411.28

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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.