Home / 216,560.28-324,622.31-90,270.44

Finding the Fourth Proportional to 216,560.28, 324,622.31 and 90,270.44

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Solution

The fourth proportional to 216,560.28, 324,622.31 and 90,270.44 is: 135,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,560.28 : 324,622.31 = 90,270.44 : x
  2. Step 2: Convert to fraction form
    216,560.28/324,622.31 = 90,270.44/x
  3. Step 3: Cross multiply
    216,560.28x = 324,622.31 × 90,270.44
  4. Step 4: Simplify right side
    216,560.28x = 29,303,796,683.05
  5. Step 5: Solve for x
    x = 29,303,796,683.05/216,560.28
  6. Step 6: Final answer
    x = 135,314.73

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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.