Home / 216,086.40-324,321.60-127,228.80

Finding the Fourth Proportional to 216,086.40, 324,321.60 and 127,228.80

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Solution

The fourth proportional to 216,086.40, 324,321.60 and 127,228.80 is: 190,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,086.40 : 324,321.60 = 127,228.80 : x
  2. Step 2: Convert to fraction form
    216,086.40/324,321.60 = 127,228.80/x
  3. Step 3: Cross multiply
    216,086.40x = 324,321.60 × 127,228.80
  4. Step 4: Simplify right side
    216,086.40x = 41,263,047,982.08
  5. Step 5: Solve for x
    x = 41,263,047,982.08/216,086.40
  6. Step 6: Final answer
    x = 190,956.25

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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.