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Finding the Fourth Proportional to 295.55, 445.05 and 219.05

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Solution

The fourth proportional to 295.55, 445.05 and 219.05 is: 329.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.55 : 445.05 = 219.05 : x
  2. Step 2: Convert to fraction form
    295.55/445.05 = 219.05/x
  3. Step 3: Cross multiply
    295.55x = 445.05 × 219.05
  4. Step 4: Simplify right side
    295.55x = 97,488.49
  5. Step 5: Solve for x
    x = 97,488.49/295.55
  6. Step 6: Final answer
    x = 329.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.