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Finding the Fourth Proportional to 592.21, 817.27 and 330.22

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Solution

The fourth proportional to 592.21, 817.27 and 330.22 is: 455.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.21 : 817.27 = 330.22 : x
  2. Step 2: Convert to fraction form
    592.21/817.27 = 330.22/x
  3. Step 3: Cross multiply
    592.21x = 817.27 × 330.22
  4. Step 4: Simplify right side
    592.21x = 269,878.90
  5. Step 5: Solve for x
    x = 269,878.90/592.21
  6. Step 6: Final answer
    x = 455.72

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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.