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Finding the Fourth Proportional to 285.09, 393.33 and 167.01

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Solution

The fourth proportional to 285.09, 393.33 and 167.01 is: 230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.09 : 393.33 = 167.01 : x
  2. Step 2: Convert to fraction form
    285.09/393.33 = 167.01/x
  3. Step 3: Cross multiply
    285.09x = 393.33 × 167.01
  4. Step 4: Simplify right side
    285.09x = 65,690.04
  5. Step 5: Solve for x
    x = 65,690.04/285.09
  6. Step 6: Final answer
    x = 230.42

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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.