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Finding the Fourth Proportional to 281,512.80, 422,270.01 and 141,238.62

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Solution

The fourth proportional to 281,512.80, 422,270.01 and 141,238.62 is: 211,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,512.80 : 422,270.01 = 141,238.62 : x
  2. Step 2: Convert to fraction form
    281,512.80/422,270.01 = 141,238.62/x
  3. Step 3: Cross multiply
    281,512.80x = 422,270.01 × 141,238.62
  4. Step 4: Simplify right side
    281,512.80x = 59,640,833,479.79
  5. Step 5: Solve for x
    x = 59,640,833,479.79/281,512.80
  6. Step 6: Final answer
    x = 211,858.34

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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.