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Finding the Fourth Proportional to 355.33, 490.14 and 262.04

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Solution

The fourth proportional to 355.33, 490.14 and 262.04 is: 361.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.33 : 490.14 = 262.04 : x
  2. Step 2: Convert to fraction form
    355.33/490.14 = 262.04/x
  3. Step 3: Cross multiply
    355.33x = 490.14 × 262.04
  4. Step 4: Simplify right side
    355.33x = 128,437.51
  5. Step 5: Solve for x
    x = 128,437.51/355.33
  6. Step 6: Final answer
    x = 361.46

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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.