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Finding the Fourth Proportional to 377.19, 519.53 and 324.63

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Solution

The fourth proportional to 377.19, 519.53 and 324.63 is: 447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.19 : 519.53 = 324.63 : x
  2. Step 2: Convert to fraction form
    377.19/519.53 = 324.63/x
  3. Step 3: Cross multiply
    377.19x = 519.53 × 324.63
  4. Step 4: Simplify right side
    377.19x = 168,653.40
  5. Step 5: Solve for x
    x = 168,653.40/377.19
  6. Step 6: Final answer
    x = 447.13

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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.