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Finding the Fourth Proportional to 283.06, 424.45 and 185.55

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Solution

The fourth proportional to 283.06, 424.45 and 185.55 is: 278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.06 : 424.45 = 185.55 : x
  2. Step 2: Convert to fraction form
    283.06/424.45 = 185.55/x
  3. Step 3: Cross multiply
    283.06x = 424.45 × 185.55
  4. Step 4: Simplify right side
    283.06x = 78,758.58
  5. Step 5: Solve for x
    x = 78,758.58/283.06
  6. Step 6: Final answer
    x = 278.24

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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.