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Finding the Fourth Proportional to 377.16, 520.29 and 246.21

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Solution

The fourth proportional to 377.16, 520.29 and 246.21 is: 339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.16 : 520.29 = 246.21 : x
  2. Step 2: Convert to fraction form
    377.16/520.29 = 246.21/x
  3. Step 3: Cross multiply
    377.16x = 520.29 × 246.21
  4. Step 4: Simplify right side
    377.16x = 128,100.60
  5. Step 5: Solve for x
    x = 128,100.60/377.16
  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.