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Finding the Fourth Proportional to 845.52, 1,167.66 and 550.68

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Solution

The fourth proportional to 845.52, 1,167.66 and 550.68 is: 760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.52 : 1,167.66 = 550.68 : x
  2. Step 2: Convert to fraction form
    845.52/1,167.66 = 550.68/x
  3. Step 3: Cross multiply
    845.52x = 1,167.66 × 550.68
  4. Step 4: Simplify right side
    845.52x = 643,007.01
  5. Step 5: Solve for x
    x = 643,007.01/845.52
  6. Step 6: Final answer
    x = 760.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.