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Finding the Fourth Proportional to 350.18, 525.17 and 103.43

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Solution

The fourth proportional to 350.18, 525.17 and 103.43 is: 155.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.18 : 525.17 = 103.43 : x
  2. Step 2: Convert to fraction form
    350.18/525.17 = 103.43/x
  3. Step 3: Cross multiply
    350.18x = 525.17 × 103.43
  4. Step 4: Simplify right side
    350.18x = 54,319.13
  5. Step 5: Solve for x
    x = 54,319.13/350.18
  6. Step 6: Final answer
    x = 155.12

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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.