Home / 203,480.45-280,817.40-112,845.10

Finding the Fourth Proportional to 203,480.45, 280,817.40 and 112,845.10

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Solution

The fourth proportional to 203,480.45, 280,817.40 and 112,845.10 is: 155,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,480.45 : 280,817.40 = 112,845.10 : x
  2. Step 2: Convert to fraction form
    203,480.45/280,817.40 = 112,845.10/x
  3. Step 3: Cross multiply
    203,480.45x = 280,817.40 × 112,845.10
  4. Step 4: Simplify right side
    203,480.45x = 31,688,867,584.74
  5. Step 5: Solve for x
    x = 31,688,867,584.74/203,480.45
  6. Step 6: Final answer
    x = 155,734.21

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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.