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Finding the Fourth Proportional to 539.04, 743.88 and 303

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Solution

The fourth proportional to 539.04, 743.88 and 303 is: 418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.04 : 743.88 = 303 : x
  2. Step 2: Convert to fraction form
    539.04/743.88 = 303/x
  3. Step 3: Cross multiply
    539.04x = 743.88 × 303
  4. Step 4: Simplify right side
    539.04x = 225,395.64
  5. Step 5: Solve for x
    x = 225,395.64/539.04
  6. Step 6: Final answer
    x = 418.14

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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.