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Finding the Fourth Proportional to 1,100.03, 1,650.01 and 369.62

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Solution

The fourth proportional to 1,100.03, 1,650.01 and 369.62 is: 554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100.03 : 1,650.01 = 369.62 : x
  2. Step 2: Convert to fraction form
    1,100.03/1,650.01 = 369.62/x
  3. Step 3: Cross multiply
    1,100.03x = 1,650.01 × 369.62
  4. Step 4: Simplify right side
    1,100.03x = 609,876.70
  5. Step 5: Solve for x
    x = 609,876.70/1,100.03
  6. Step 6: Final answer
    x = 554.42

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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.