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Finding the Fourth Proportional to 216,039.60, 324,059.40 and 203,792.40

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Solution

The fourth proportional to 216,039.60, 324,059.40 and 203,792.40 is: 305,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,039.60 : 324,059.40 = 203,792.40 : x
  2. Step 2: Convert to fraction form
    216,039.60/324,059.40 = 203,792.40/x
  3. Step 3: Cross multiply
    216,039.60x = 324,059.40 × 203,792.40
  4. Step 4: Simplify right side
    216,039.60x = 66,040,842,868.56
  5. Step 5: Solve for x
    x = 66,040,842,868.56/216,039.60
  6. Step 6: Final answer
    x = 305,688.60

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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.