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Finding the Fourth Proportional to 311,285.60, 467,365.80 and 193,187.60

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Solution

The fourth proportional to 311,285.60, 467,365.80 and 193,187.60 is: 290,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,285.60 : 467,365.80 = 193,187.60 : x
  2. Step 2: Convert to fraction form
    311,285.60/467,365.80 = 193,187.60/x
  3. Step 3: Cross multiply
    311,285.60x = 467,365.80 × 193,187.60
  4. Step 4: Simplify right side
    311,285.60x = 90,289,277,224.08
  5. Step 5: Solve for x
    x = 90,289,277,224.08/311,285.60
  6. Step 6: Final answer
    x = 290,052.86

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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.