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Finding the Fourth Proportional to 1,031.02, 1,546.51 and 251.03

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Solution

The fourth proportional to 1,031.02, 1,546.51 and 251.03 is: 376.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.02 : 1,546.51 = 251.03 : x
  2. Step 2: Convert to fraction form
    1,031.02/1,546.51 = 251.03/x
  3. Step 3: Cross multiply
    1,031.02x = 1,546.51 × 251.03
  4. Step 4: Simplify right side
    1,031.02x = 388,212.05
  5. Step 5: Solve for x
    x = 388,212.05/1,031.02
  6. Step 6: Final answer
    x = 376.53

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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.