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Finding the Fourth Proportional to 475.99, 656.71 and 377.44

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Solution

The fourth proportional to 475.99, 656.71 and 377.44 is: 520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.99 : 656.71 = 377.44 : x
  2. Step 2: Convert to fraction form
    475.99/656.71 = 377.44/x
  3. Step 3: Cross multiply
    475.99x = 656.71 × 377.44
  4. Step 4: Simplify right side
    475.99x = 247,868.62
  5. Step 5: Solve for x
    x = 247,868.62/475.99
  6. Step 6: Final answer
    x = 520.74

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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.