Home / 203,340.40-280,611.84-112,698.36

Finding the Fourth Proportional to 203,340.40, 280,611.84 and 112,698.36

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Solution

The fourth proportional to 203,340.40, 280,611.84 and 112,698.36 is: 155,524.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,340.40 : 280,611.84 = 112,698.36 : x
  2. Step 2: Convert to fraction form
    203,340.40/280,611.84 = 112,698.36/x
  3. Step 3: Cross multiply
    203,340.40x = 280,611.84 × 112,698.36
  4. Step 4: Simplify right side
    203,340.40x = 31,624,494,164.58
  5. Step 5: Solve for x
    x = 31,624,494,164.58/203,340.40
  6. Step 6: Final answer
    x = 155,524.89

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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.