Home / 216,719.57-324,784.08-104,391.60

Finding the Fourth Proportional to 216,719.57, 324,784.08 and 104,391.60

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Solution

The fourth proportional to 216,719.57, 324,784.08 and 104,391.60 is: 156,445.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,719.57 : 324,784.08 = 104,391.60 : x
  2. Step 2: Convert to fraction form
    216,719.57/324,784.08 = 104,391.60/x
  3. Step 3: Cross multiply
    216,719.57x = 324,784.08 × 104,391.60
  4. Step 4: Simplify right side
    216,719.57x = 33,904,729,765.73
  5. Step 5: Solve for x
    x = 33,904,729,765.73/216,719.57
  6. Step 6: Final answer
    x = 156,445.17

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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.