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Finding the Fourth Proportional to 444.43, 663.37 and 392.53

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Solution

The fourth proportional to 444.43, 663.37 and 392.53 is: 585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.43 : 663.37 = 392.53 : x
  2. Step 2: Convert to fraction form
    444.43/663.37 = 392.53/x
  3. Step 3: Cross multiply
    444.43x = 663.37 × 392.53
  4. Step 4: Simplify right side
    444.43x = 260,392.63
  5. Step 5: Solve for x
    x = 260,392.63/444.43
  6. Step 6: Final answer
    x = 585.90

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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.