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Finding the Fourth Proportional to 1,147.02, 1,720.77 and 367.26

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Solution

The fourth proportional to 1,147.02, 1,720.77 and 367.26 is: 550.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.02 : 1,720.77 = 367.26 : x
  2. Step 2: Convert to fraction form
    1,147.02/1,720.77 = 367.26/x
  3. Step 3: Cross multiply
    1,147.02x = 1,720.77 × 367.26
  4. Step 4: Simplify right side
    1,147.02x = 631,969.99
  5. Step 5: Solve for x
    x = 631,969.99/1,147.02
  6. Step 6: Final answer
    x = 550.97

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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.