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Finding the Fourth Proportional to 1,100.85, 1,650.87 and 370.23

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Solution

The fourth proportional to 1,100.85, 1,650.87 and 370.23 is: 555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100.85 : 1,650.87 = 370.23 : x
  2. Step 2: Convert to fraction form
    1,100.85/1,650.87 = 370.23/x
  3. Step 3: Cross multiply
    1,100.85x = 1,650.87 × 370.23
  4. Step 4: Simplify right side
    1,100.85x = 611,201.60
  5. Step 5: Solve for x
    x = 611,201.60/1,100.85
  6. Step 6: Final answer
    x = 555.21

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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.