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Finding the Fourth Proportional to 283.54, 425.44 and 146.69

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Solution

The fourth proportional to 283.54, 425.44 and 146.69 is: 220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.54 : 425.44 = 146.69 : x
  2. Step 2: Convert to fraction form
    283.54/425.44 = 146.69/x
  3. Step 3: Cross multiply
    283.54x = 425.44 × 146.69
  4. Step 4: Simplify right side
    283.54x = 62,405.02
  5. Step 5: Solve for x
    x = 62,405.02/283.54
  6. Step 6: Final answer
    x = 220.09

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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.