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Finding the Fourth Proportional to 283.29, 425.70 and 153.38

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Solution

The fourth proportional to 283.29, 425.70 and 153.38 is: 230.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.29 : 425.70 = 153.38 : x
  2. Step 2: Convert to fraction form
    283.29/425.70 = 153.38/x
  3. Step 3: Cross multiply
    283.29x = 425.70 × 153.38
  4. Step 4: Simplify right side
    283.29x = 65,294.93
  5. Step 5: Solve for x
    x = 65,294.93/283.29
  6. Step 6: Final answer
    x = 230.49

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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.