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Finding the Fourth Proportional to 402.08, 554.67 and 262.04

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Solution

The fourth proportional to 402.08, 554.67 and 262.04 is: 361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.08 : 554.67 = 262.04 : x
  2. Step 2: Convert to fraction form
    402.08/554.67 = 262.04/x
  3. Step 3: Cross multiply
    402.08x = 554.67 × 262.04
  4. Step 4: Simplify right side
    402.08x = 145,342.95
  5. Step 5: Solve for x
    x = 145,342.95/402.08
  6. Step 6: Final answer
    x = 361.48

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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.