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Finding the Fourth Proportional to 285.07, 426.92 and 162.96

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Solution

The fourth proportional to 285.07, 426.92 and 162.96 is: 244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.07 : 426.92 = 162.96 : x
  2. Step 2: Convert to fraction form
    285.07/426.92 = 162.96/x
  3. Step 3: Cross multiply
    285.07x = 426.92 × 162.96
  4. Step 4: Simplify right side
    285.07x = 69,570.88
  5. Step 5: Solve for x
    x = 69,570.88/285.07
  6. Step 6: Final answer
    x = 244.05

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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.