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Finding the Fourth Proportional to 377.13, 520.27 and 272.05

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Solution

The fourth proportional to 377.13, 520.27 and 272.05 is: 375.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.13 : 520.27 = 272.05 : x
  2. Step 2: Convert to fraction form
    377.13/520.27 = 272.05/x
  3. Step 3: Cross multiply
    377.13x = 520.27 × 272.05
  4. Step 4: Simplify right side
    377.13x = 141,539.02
  5. Step 5: Solve for x
    x = 141,539.02/377.13
  6. Step 6: Final answer
    x = 375.31

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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.