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Finding the Fourth Proportional to 377.35, 521.18 and 300.67

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Solution

The fourth proportional to 377.35, 521.18 and 300.67 is: 415.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.35 : 521.18 = 300.67 : x
  2. Step 2: Convert to fraction form
    377.35/521.18 = 300.67/x
  3. Step 3: Cross multiply
    377.35x = 521.18 × 300.67
  4. Step 4: Simplify right side
    377.35x = 156,703.19
  5. Step 5: Solve for x
    x = 156,703.19/377.35
  6. Step 6: Final answer
    x = 415.27

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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.