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Finding the Third Proportional to 377.75 and 508.19

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Solution

The third proportional to 377.75 and 508.19 is: 683.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.75 : 508.19 = 508.19 : x
  2. Step 2: Convert to fraction form
    377.75/508.19 = 508.19/x
  3. Step 3: Cross multiply
    377.75x = 508.19 × 508.19
  4. Step 4: Simplify right side
    377.75x = 258,254.54
  5. Step 5: Solve for x
    x = 258,254.54/377.75
  6. Step 6: Final answer
    x = 683.67

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.