Home / 200,867.40-300,928.32-143,823.60

Finding the Fourth Proportional to 200,867.40, 300,928.32 and 143,823.60

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Solution

The fourth proportional to 200,867.40, 300,928.32 and 143,823.60 is: 215,468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,867.40 : 300,928.32 = 143,823.60 : x
  2. Step 2: Convert to fraction form
    200,867.40/300,928.32 = 143,823.60/x
  3. Step 3: Cross multiply
    200,867.40x = 300,928.32 × 143,823.60
  4. Step 4: Simplify right side
    200,867.40x = 43,280,594,324.35
  5. Step 5: Solve for x
    x = 43,280,594,324.35/200,867.40
  6. Step 6: Final answer
    x = 215,468.48

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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.