Home / 203,206.90-280,422.36-111,325.44

Finding the Fourth Proportional to 203,206.90, 280,422.36 and 111,325.44

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Solution

The fourth proportional to 203,206.90, 280,422.36 and 111,325.44 is: 153,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,206.90 : 280,422.36 = 111,325.44 : x
  2. Step 2: Convert to fraction form
    203,206.90/280,422.36 = 111,325.44/x
  3. Step 3: Cross multiply
    203,206.90x = 280,422.36 × 111,325.44
  4. Step 4: Simplify right side
    203,206.90x = 31,218,142,612.84
  5. Step 5: Solve for x
    x = 31,218,142,612.84/203,206.90
  6. Step 6: Final answer
    x = 153,627.37

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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.