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Finding the Fourth Proportional to 283.89, 425.55 and 146.63

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Solution

The fourth proportional to 283.89, 425.55 and 146.63 is: 219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.89 : 425.55 = 146.63 : x
  2. Step 2: Convert to fraction form
    283.89/425.55 = 146.63/x
  3. Step 3: Cross multiply
    283.89x = 425.55 × 146.63
  4. Step 4: Simplify right side
    283.89x = 62,398.40
  5. Step 5: Solve for x
    x = 62,398.40/283.89
  6. Step 6: Final answer
    x = 219.80

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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.