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Finding the Fourth Proportional to 350.15, 525.10 and 103.28

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Solution

The fourth proportional to 350.15, 525.10 and 103.28 is: 154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.15 : 525.10 = 103.28 : x
  2. Step 2: Convert to fraction form
    350.15/525.10 = 103.28/x
  3. Step 3: Cross multiply
    350.15x = 525.10 × 103.28
  4. Step 4: Simplify right side
    350.15x = 54,232.33
  5. Step 5: Solve for x
    x = 54,232.33/350.15
  6. Step 6: Final answer
    x = 154.88

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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.