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Finding the Fourth Proportional to 419.19, 578.37 and 244.43

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Solution

The fourth proportional to 419.19, 578.37 and 244.43 is: 337.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    419.19 : 578.37 = 244.43 : x
  2. Step 2: Convert to fraction form
    419.19/578.37 = 244.43/x
  3. Step 3: Cross multiply
    419.19x = 578.37 × 244.43
  4. Step 4: Simplify right side
    419.19x = 141,370.98
  5. Step 5: Solve for x
    x = 141,370.98/419.19
  6. Step 6: Final answer
    x = 337.25

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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.