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Finding the Fourth Proportional to 493.84, 741.24 and 365.20

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Solution

The fourth proportional to 493.84, 741.24 and 365.20 is: 548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.84 : 741.24 = 365.20 : x
  2. Step 2: Convert to fraction form
    493.84/741.24 = 365.20/x
  3. Step 3: Cross multiply
    493.84x = 741.24 × 365.20
  4. Step 4: Simplify right side
    493.84x = 270,700.85
  5. Step 5: Solve for x
    x = 270,700.85/493.84
  6. Step 6: Final answer
    x = 548.15

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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.