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Finding the Fourth Proportional to 444.72, 614.46 and 389.37

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Solution

The fourth proportional to 444.72, 614.46 and 389.37 is: 537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.72 : 614.46 = 389.37 : x
  2. Step 2: Convert to fraction form
    444.72/614.46 = 389.37/x
  3. Step 3: Cross multiply
    444.72x = 614.46 × 389.37
  4. Step 4: Simplify right side
    444.72x = 239,252.29
  5. Step 5: Solve for x
    x = 239,252.29/444.72
  6. Step 6: Final answer
    x = 537.98

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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.