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Finding the Fourth Proportional to 216.47, 324.26 and 184.12

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Solution

The fourth proportional to 216.47, 324.26 and 184.12 is: 275.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.47 : 324.26 = 184.12 : x
  2. Step 2: Convert to fraction form
    216.47/324.26 = 184.12/x
  3. Step 3: Cross multiply
    216.47x = 324.26 × 184.12
  4. Step 4: Simplify right side
    216.47x = 59,701.71
  5. Step 5: Solve for x
    x = 59,701.71/216.47
  6. Step 6: Final answer
    x = 275.79

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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.