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Finding the Fourth Proportional to 543.87, 816.03 and 338.13

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Solution

The fourth proportional to 543.87, 816.03 and 338.13 is: 507.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.87 : 816.03 = 338.13 : x
  2. Step 2: Convert to fraction form
    543.87/816.03 = 338.13/x
  3. Step 3: Cross multiply
    543.87x = 816.03 × 338.13
  4. Step 4: Simplify right side
    543.87x = 275,924.22
  5. Step 5: Solve for x
    x = 275,924.22/543.87
  6. Step 6: Final answer
    x = 507.33

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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.