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Finding the Fourth Proportional to 377.22, 519.78 and 303.24

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Solution

The fourth proportional to 377.22, 519.78 and 303.24 is: 417.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.22 : 519.78 = 303.24 : x
  2. Step 2: Convert to fraction form
    377.22/519.78 = 303.24/x
  3. Step 3: Cross multiply
    377.22x = 519.78 × 303.24
  4. Step 4: Simplify right side
    377.22x = 157,615.57
  5. Step 5: Solve for x
    x = 157,615.57/377.22
  6. Step 6: Final answer
    x = 417.84

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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.