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Finding the Fourth Proportional to 388.67, 583.81 and 244.49

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Solution

The fourth proportional to 388.67, 583.81 and 244.49 is: 367.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.67 : 583.81 = 244.49 : x
  2. Step 2: Convert to fraction form
    388.67/583.81 = 244.49/x
  3. Step 3: Cross multiply
    388.67x = 583.81 × 244.49
  4. Step 4: Simplify right side
    388.67x = 142,732.18
  5. Step 5: Solve for x
    x = 142,732.18/388.67
  6. Step 6: Final answer
    x = 367.24

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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.