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Finding the Fourth Proportional to 542.03, 811.22 and 359.37

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Solution

The fourth proportional to 542.03, 811.22 and 359.37 is: 537.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.03 : 811.22 = 359.37 : x
  2. Step 2: Convert to fraction form
    542.03/811.22 = 359.37/x
  3. Step 3: Cross multiply
    542.03x = 811.22 × 359.37
  4. Step 4: Simplify right side
    542.03x = 291,526.33
  5. Step 5: Solve for x
    x = 291,526.33/542.03
  6. Step 6: Final answer
    x = 537.85

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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.