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Finding the Fourth Proportional to 205.02, 283.02 and 131.46

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Solution

The fourth proportional to 205.02, 283.02 and 131.46 is: 181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.02 : 283.02 = 131.46 : x
  2. Step 2: Convert to fraction form
    205.02/283.02 = 131.46/x
  3. Step 3: Cross multiply
    205.02x = 283.02 × 131.46
  4. Step 4: Simplify right side
    205.02x = 37,205.81
  5. Step 5: Solve for x
    x = 37,205.81/205.02
  6. Step 6: Final answer
    x = 181.47

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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.