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Finding the Fourth Proportional to 262,027.80, 393,041.70 and 84,540.60

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Solution

The fourth proportional to 262,027.80, 393,041.70 and 84,540.60 is: 126,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,027.80 : 393,041.70 = 84,540.60 : x
  2. Step 2: Convert to fraction form
    262,027.80/393,041.70 = 84,540.60/x
  3. Step 3: Cross multiply
    262,027.80x = 393,041.70 × 84,540.60
  4. Step 4: Simplify right side
    262,027.80x = 33,227,981,143.02
  5. Step 5: Solve for x
    x = 33,227,981,143.02/262,027.80
  6. Step 6: Final answer
    x = 126,810.90

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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.