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Finding the Fourth Proportional to 375.03, 517.58 and 217.67

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Solution

The fourth proportional to 375.03, 517.58 and 217.67 is: 300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.03 : 517.58 = 217.67 : x
  2. Step 2: Convert to fraction form
    375.03/517.58 = 217.67/x
  3. Step 3: Cross multiply
    375.03x = 517.58 × 217.67
  4. Step 4: Simplify right side
    375.03x = 112,657.96
  5. Step 5: Solve for x
    x = 112,657.96/375.03
  6. Step 6: Final answer
    x = 300.40

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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.