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Finding the Fourth Proportional to 283.90, 425.92 and 154.03

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Solution

The fourth proportional to 283.90, 425.92 and 154.03 is: 231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.90 : 425.92 = 154.03 : x
  2. Step 2: Convert to fraction form
    283.90/425.92 = 154.03/x
  3. Step 3: Cross multiply
    283.90x = 425.92 × 154.03
  4. Step 4: Simplify right side
    283.90x = 65,603.69
  5. Step 5: Solve for x
    x = 65,603.69/283.90
  6. Step 6: Final answer
    x = 231.08

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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.