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Finding the Fourth Proportional to 283.92, 392.07 and 185.91

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Solution

The fourth proportional to 283.92, 392.07 and 185.91 is: 256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.92 : 392.07 = 185.91 : x
  2. Step 2: Convert to fraction form
    283.92/392.07 = 185.91/x
  3. Step 3: Cross multiply
    283.92x = 392.07 × 185.91
  4. Step 4: Simplify right side
    283.92x = 72,889.73
  5. Step 5: Solve for x
    x = 72,889.73/283.92
  6. Step 6: Final answer
    x = 256.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.