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Finding the Fourth Proportional to 377.33, 518.99 and 303.48

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Solution

The fourth proportional to 377.33, 518.99 and 303.48 is: 417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.33 : 518.99 = 303.48 : x
  2. Step 2: Convert to fraction form
    377.33/518.99 = 303.48/x
  3. Step 3: Cross multiply
    377.33x = 518.99 × 303.48
  4. Step 4: Simplify right side
    377.33x = 157,501.57
  5. Step 5: Solve for x
    x = 157,501.57/377.33
  6. Step 6: Final answer
    x = 417.42

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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.