Home / 216,005.10-324,007.65-206,163.60

Finding the Fourth Proportional to 216,005.10, 324,007.65 and 206,163.60

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Solution

The fourth proportional to 216,005.10, 324,007.65 and 206,163.60 is: 309,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,005.10 : 324,007.65 = 206,163.60 : x
  2. Step 2: Convert to fraction form
    216,005.10/324,007.65 = 206,163.60/x
  3. Step 3: Cross multiply
    216,005.10x = 324,007.65 × 206,163.60
  4. Step 4: Simplify right side
    216,005.10x = 66,798,583,551.54
  5. Step 5: Solve for x
    x = 66,798,583,551.54/216,005.10
  6. Step 6: Final answer
    x = 309,245.40

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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.