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Finding the Fourth Proportional to 283.43, 425.13 and 155.99

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Solution

The fourth proportional to 283.43, 425.13 and 155.99 is: 233.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.43 : 425.13 = 155.99 : x
  2. Step 2: Convert to fraction form
    283.43/425.13 = 155.99/x
  3. Step 3: Cross multiply
    283.43x = 425.13 × 155.99
  4. Step 4: Simplify right side
    283.43x = 66,313.90
  5. Step 5: Solve for x
    x = 66,313.90/283.43
  6. Step 6: Final answer
    x = 233.97

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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.