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Finding the Fourth Proportional to 244.51, 366.47 and 215.55

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Solution

The fourth proportional to 244.51, 366.47 and 215.55 is: 323.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.51 : 366.47 = 215.55 : x
  2. Step 2: Convert to fraction form
    244.51/366.47 = 215.55/x
  3. Step 3: Cross multiply
    244.51x = 366.47 × 215.55
  4. Step 4: Simplify right side
    244.51x = 78,992.61
  5. Step 5: Solve for x
    x = 78,992.61/244.51
  6. Step 6: Final answer
    x = 323.06

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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.