Home / 218,771.40-327,638.70-134,790.60

Finding the Fourth Proportional to 218,771.40, 327,638.70 and 134,790.60

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Solution

The fourth proportional to 218,771.40, 327,638.70 and 134,790.60 is: 201,866.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,771.40 : 327,638.70 = 134,790.60 : x
  2. Step 2: Convert to fraction form
    218,771.40/327,638.70 = 134,790.60/x
  3. Step 3: Cross multiply
    218,771.40x = 327,638.70 × 134,790.60
  4. Step 4: Simplify right side
    218,771.40x = 44,162,616,956.22
  5. Step 5: Solve for x
    x = 44,162,616,956.22/218,771.40
  6. Step 6: Final answer
    x = 201,866.50

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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.