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Finding the Fourth Proportional to 189,352.51, 283,945.60 and 70,940.80

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Solution

The fourth proportional to 189,352.51, 283,945.60 and 70,940.80 is: 106,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,352.51 : 283,945.60 = 70,940.80 : x
  2. Step 2: Convert to fraction form
    189,352.51/283,945.60 = 70,940.80/x
  3. Step 3: Cross multiply
    189,352.51x = 283,945.60 × 70,940.80
  4. Step 4: Simplify right side
    189,352.51x = 20,143,328,020.48
  5. Step 5: Solve for x
    x = 20,143,328,020.48/189,352.51
  6. Step 6: Final answer
    x = 106,380.04

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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.