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Finding the Fourth Proportional to 1,050.93, 1,576.22 and 281.25

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Solution

The fourth proportional to 1,050.93, 1,576.22 and 281.25 is: 421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.93 : 1,576.22 = 281.25 : x
  2. Step 2: Convert to fraction form
    1,050.93/1,576.22 = 281.25/x
  3. Step 3: Cross multiply
    1,050.93x = 1,576.22 × 281.25
  4. Step 4: Simplify right side
    1,050.93x = 443,310.47
  5. Step 5: Solve for x
    x = 443,310.47/1,050.93
  6. Step 6: Final answer
    x = 421.83

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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.