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Finding the Fourth Proportional to 216,804.73, 325,020.21 and 83,778.33

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Solution

The fourth proportional to 216,804.73, 325,020.21 and 83,778.33 is: 125,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,804.73 : 325,020.21 = 83,778.33 : x
  2. Step 2: Convert to fraction form
    216,804.73/325,020.21 = 83,778.33/x
  3. Step 3: Cross multiply
    216,804.73x = 325,020.21 × 83,778.33
  4. Step 4: Simplify right side
    216,804.73x = 27,229,650,410.05
  5. Step 5: Solve for x
    x = 27,229,650,410.05/216,804.73
  6. Step 6: Final answer
    x = 125,595.28

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1.5x scale

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.