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Finding the Fourth Proportional to 377.22, 520.56 and 304.05

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Solution

The fourth proportional to 377.22, 520.56 and 304.05 is: 419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.22 : 520.56 = 304.05 : x
  2. Step 2: Convert to fraction form
    377.22/520.56 = 304.05/x
  3. Step 3: Cross multiply
    377.22x = 520.56 × 304.05
  4. Step 4: Simplify right side
    377.22x = 158,276.27
  5. Step 5: Solve for x
    x = 158,276.27/377.22
  6. Step 6: Final answer
    x = 419.59

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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.