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Finding the Fourth Proportional to 888.36, 1,332.27 and 541.68

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Solution

The fourth proportional to 888.36, 1,332.27 and 541.68 is: 812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.36 : 1,332.27 = 541.68 : x
  2. Step 2: Convert to fraction form
    888.36/1,332.27 = 541.68/x
  3. Step 3: Cross multiply
    888.36x = 1,332.27 × 541.68
  4. Step 4: Simplify right side
    888.36x = 721,664.01
  5. Step 5: Solve for x
    x = 721,664.01/888.36
  6. Step 6: Final answer
    x = 812.36

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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.