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Finding the Fourth Proportional to 295.95, 444.21 and 215.22

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Solution

The fourth proportional to 295.95, 444.21 and 215.22 is: 323.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.95 : 444.21 = 215.22 : x
  2. Step 2: Convert to fraction form
    295.95/444.21 = 215.22/x
  3. Step 3: Cross multiply
    295.95x = 444.21 × 215.22
  4. Step 4: Simplify right side
    295.95x = 95,602.88
  5. Step 5: Solve for x
    x = 95,602.88/295.95
  6. Step 6: Final answer
    x = 323.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.