Home / 203,286.07-280,538.83-118,408.60

Finding the Fourth Proportional to 203,286.07, 280,538.83 and 118,408.60

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Solution

The fourth proportional to 203,286.07, 280,538.83 and 118,408.60 is: 163,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,286.07 : 280,538.83 = 118,408.60 : x
  2. Step 2: Convert to fraction form
    203,286.07/280,538.83 = 118,408.60/x
  3. Step 3: Cross multiply
    203,286.07x = 280,538.83 × 118,408.60
  4. Step 4: Simplify right side
    203,286.07x = 33,218,209,108.57
  5. Step 5: Solve for x
    x = 33,218,209,108.57/203,286.07
  6. Step 6: Final answer
    x = 163,406.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.