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Finding the Fourth Proportional to 217,477.44, 326,016.72 and 84,323.52

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Solution

The fourth proportional to 217,477.44, 326,016.72 and 84,323.52 is: 126,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,477.44 : 326,016.72 = 84,323.52 : x
  2. Step 2: Convert to fraction form
    217,477.44/326,016.72 = 84,323.52/x
  3. Step 3: Cross multiply
    217,477.44x = 326,016.72 × 84,323.52
  4. Step 4: Simplify right side
    217,477.44x = 27,490,877,409.25
  5. Step 5: Solve for x
    x = 27,490,877,409.25/217,477.44
  6. Step 6: Final answer
    x = 126,407.95

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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.