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Finding the Fourth Proportional to 283.29, 390.96 and 184.97

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Solution

The fourth proportional to 283.29, 390.96 and 184.97 is: 255.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.29 : 390.96 = 184.97 : x
  2. Step 2: Convert to fraction form
    283.29/390.96 = 184.97/x
  3. Step 3: Cross multiply
    283.29x = 390.96 × 184.97
  4. Step 4: Simplify right side
    283.29x = 72,313.92
  5. Step 5: Solve for x
    x = 72,313.92/283.29
  6. Step 6: Final answer
    x = 255.26

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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.