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Finding the Fourth Proportional to 444.18, 663.90 and 340.37

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Solution

The fourth proportional to 444.18, 663.90 and 340.37 is: 508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.18 : 663.90 = 340.37 : x
  2. Step 2: Convert to fraction form
    444.18/663.90 = 340.37/x
  3. Step 3: Cross multiply
    444.18x = 663.90 × 340.37
  4. Step 4: Simplify right side
    444.18x = 225,969.54
  5. Step 5: Solve for x
    x = 225,969.54/444.18
  6. Step 6: Final answer
    x = 508.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.