Home / 281,883.20-422,824.80-84,865.60

Finding the Fourth Proportional to 281,883.20, 422,824.80 and 84,865.60

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Solution

The fourth proportional to 281,883.20, 422,824.80 and 84,865.60 is: 127,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,883.20 : 422,824.80 = 84,865.60 : x
  2. Step 2: Convert to fraction form
    281,883.20/422,824.80 = 84,865.60/x
  3. Step 3: Cross multiply
    281,883.20x = 422,824.80 × 84,865.60
  4. Step 4: Simplify right side
    281,883.20x = 35,883,280,346.88
  5. Step 5: Solve for x
    x = 35,883,280,346.88/281,883.20
  6. Step 6: Final answer
    x = 127,298.40

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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.