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Finding the Fourth Proportional to 318.98, 440.59 and 246.19

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Solution

The fourth proportional to 318.98, 440.59 and 246.19 is: 340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318.98 : 440.59 = 246.19 : x
  2. Step 2: Convert to fraction form
    318.98/440.59 = 246.19/x
  3. Step 3: Cross multiply
    318.98x = 440.59 × 246.19
  4. Step 4: Simplify right side
    318.98x = 108,466.65
  5. Step 5: Solve for x
    x = 108,466.65/318.98
  6. Step 6: Final answer
    x = 340.05

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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.