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Finding the Fourth Proportional to 377.21, 520.53 and 246.13

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Solution

The fourth proportional to 377.21, 520.53 and 246.13 is: 339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.21 : 520.53 = 246.13 : x
  2. Step 2: Convert to fraction form
    377.21/520.53 = 246.13/x
  3. Step 3: Cross multiply
    377.21x = 520.53 × 246.13
  4. Step 4: Simplify right side
    377.21x = 128,118.05
  5. Step 5: Solve for x
    x = 128,118.05/377.21
  6. Step 6: Final answer
    x = 339.65

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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.