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Finding the Fourth Proportional to 377.83, 519.67 and 303.98

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Solution

The fourth proportional to 377.83, 519.67 and 303.98 is: 418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.83 : 519.67 = 303.98 : x
  2. Step 2: Convert to fraction form
    377.83/519.67 = 303.98/x
  3. Step 3: Cross multiply
    377.83x = 519.67 × 303.98
  4. Step 4: Simplify right side
    377.83x = 157,969.29
  5. Step 5: Solve for x
    x = 157,969.29/377.83
  6. Step 6: Final answer
    x = 418.10

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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.