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Finding the Fourth Proportional to 475.18, 712.88 and 201.29

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Solution

The fourth proportional to 475.18, 712.88 and 201.29 is: 301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.18 : 712.88 = 201.29 : x
  2. Step 2: Convert to fraction form
    475.18/712.88 = 201.29/x
  3. Step 3: Cross multiply
    475.18x = 712.88 × 201.29
  4. Step 4: Simplify right side
    475.18x = 143,492.93
  5. Step 5: Solve for x
    x = 143,492.93/475.18
  6. Step 6: Final answer
    x = 301.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.