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Finding the Fourth Proportional to 290.49, 400.69 and 246.52

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Solution

The fourth proportional to 290.49, 400.69 and 246.52 is: 340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290.49 : 400.69 = 246.52 : x
  2. Step 2: Convert to fraction form
    290.49/400.69 = 246.52/x
  3. Step 3: Cross multiply
    290.49x = 400.69 × 246.52
  4. Step 4: Simplify right side
    290.49x = 98,778.10
  5. Step 5: Solve for x
    x = 98,778.10/290.49
  6. Step 6: Final answer
    x = 340.04

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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.