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Finding the Fourth Proportional to 490.15, 735.49 and 246.67

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Solution

The fourth proportional to 490.15, 735.49 and 246.67 is: 370.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.15 : 735.49 = 246.67 : x
  2. Step 2: Convert to fraction form
    490.15/735.49 = 246.67/x
  3. Step 3: Cross multiply
    490.15x = 735.49 × 246.67
  4. Step 4: Simplify right side
    490.15x = 181,423.32
  5. Step 5: Solve for x
    x = 181,423.32/490.15
  6. Step 6: Final answer
    x = 370.14

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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.