Home / 204,986.40-307,479.60-100,010.40

Finding the Fourth Proportional to 204,986.40, 307,479.60 and 100,010.40

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Solution

The fourth proportional to 204,986.40, 307,479.60 and 100,010.40 is: 150,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,986.40 : 307,479.60 = 100,010.40 : x
  2. Step 2: Convert to fraction form
    204,986.40/307,479.60 = 100,010.40/x
  3. Step 3: Cross multiply
    204,986.40x = 307,479.60 × 100,010.40
  4. Step 4: Simplify right side
    204,986.40x = 30,751,157,787.84
  5. Step 5: Solve for x
    x = 30,751,157,787.84/204,986.40
  6. Step 6: Final answer
    x = 150,015.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.