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Finding the Fourth Proportional to 444.34, 609.80 and 402.81

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Solution

The fourth proportional to 444.34, 609.80 and 402.81 is: 552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.34 : 609.80 = 402.81 : x
  2. Step 2: Convert to fraction form
    444.34/609.80 = 402.81/x
  3. Step 3: Cross multiply
    444.34x = 609.80 × 402.81
  4. Step 4: Simplify right side
    444.34x = 245,633.54
  5. Step 5: Solve for x
    x = 245,633.54/444.34
  6. Step 6: Final answer
    x = 552.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.