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Finding the Fourth Proportional to 474.03, 653.90 and 443.29

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Solution

The fourth proportional to 474.03, 653.90 and 443.29 is: 611.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.03 : 653.90 = 443.29 : x
  2. Step 2: Convert to fraction form
    474.03/653.90 = 443.29/x
  3. Step 3: Cross multiply
    474.03x = 653.90 × 443.29
  4. Step 4: Simplify right side
    474.03x = 289,867.33
  5. Step 5: Solve for x
    x = 289,867.33/474.03
  6. Step 6: Final answer
    x = 611.50

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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.