Home / 203,220.40-280,440.47-112,576.09

Finding the Fourth Proportional to 203,220.40, 280,440.47 and 112,576.09

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Solution

The fourth proportional to 203,220.40, 280,440.47 and 112,576.09 is: 155,352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,220.40 : 280,440.47 = 112,576.09 : x
  2. Step 2: Convert to fraction form
    203,220.40/280,440.47 = 112,576.09/x
  3. Step 3: Cross multiply
    203,220.40x = 280,440.47 × 112,576.09
  4. Step 4: Simplify right side
    203,220.40x = 31,570,891,170.70
  5. Step 5: Solve for x
    x = 31,570,891,170.70/203,220.40
  6. Step 6: Final answer
    x = 155,352.96

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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.