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Finding the Fourth Proportional to 475.98, 714.18 and 245

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Solution

The fourth proportional to 475.98, 714.18 and 245 is: 367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.98 : 714.18 = 245 : x
  2. Step 2: Convert to fraction form
    475.98/714.18 = 245/x
  3. Step 3: Cross multiply
    475.98x = 714.18 × 245
  4. Step 4: Simplify right side
    475.98x = 174,974.10
  5. Step 5: Solve for x
    x = 174,974.10/475.98
  6. Step 6: Final answer
    x = 367.61

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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.