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Finding the Fourth Proportional to 445.03, 663.56 and 444.42

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Solution

The fourth proportional to 445.03, 663.56 and 444.42 is: 662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.03 : 663.56 = 444.42 : x
  2. Step 2: Convert to fraction form
    445.03/663.56 = 444.42/x
  3. Step 3: Cross multiply
    445.03x = 663.56 × 444.42
  4. Step 4: Simplify right side
    445.03x = 294,898.78
  5. Step 5: Solve for x
    x = 294,898.78/445.03
  6. Step 6: Final answer
    x = 662.65

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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.