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Finding the Fourth Proportional to 442.69, 610.93 and 246.21

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Solution

The fourth proportional to 442.69, 610.93 and 246.21 is: 339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.69 : 610.93 = 246.21 : x
  2. Step 2: Convert to fraction form
    442.69/610.93 = 246.21/x
  3. Step 3: Cross multiply
    442.69x = 610.93 × 246.21
  4. Step 4: Simplify right side
    442.69x = 150,417.08
  5. Step 5: Solve for x
    x = 150,417.08/442.69
  6. Step 6: Final answer
    x = 339.78

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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.