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Finding the Fourth Proportional to 190.30, 285.43 and 179.02

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Solution

The fourth proportional to 190.30, 285.43 and 179.02 is: 268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.30 : 285.43 = 179.02 : x
  2. Step 2: Convert to fraction form
    190.30/285.43 = 179.02/x
  3. Step 3: Cross multiply
    190.30x = 285.43 × 179.02
  4. Step 4: Simplify right side
    190.30x = 51,097.68
  5. Step 5: Solve for x
    x = 51,097.68/190.30
  6. Step 6: Final answer
    x = 268.51

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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.