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Finding the Fourth Proportional to 595.10, 821.25 and 329.56

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Solution

The fourth proportional to 595.10, 821.25 and 329.56 is: 454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.10 : 821.25 = 329.56 : x
  2. Step 2: Convert to fraction form
    595.10/821.25 = 329.56/x
  3. Step 3: Cross multiply
    595.10x = 821.25 × 329.56
  4. Step 4: Simplify right side
    595.10x = 270,649.10
  5. Step 5: Solve for x
    x = 270,649.10/595.10
  6. Step 6: Final answer
    x = 454.79

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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.