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Finding the Fourth Proportional to 197,331.20, 295,996.80 and 155,340.80

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Solution

The fourth proportional to 197,331.20, 295,996.80 and 155,340.80 is: 233,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,331.20 : 295,996.80 = 155,340.80 : x
  2. Step 2: Convert to fraction form
    197,331.20/295,996.80 = 155,340.80/x
  3. Step 3: Cross multiply
    197,331.20x = 295,996.80 × 155,340.80
  4. Step 4: Simplify right side
    197,331.20x = 45,980,379,709.44
  5. Step 5: Solve for x
    x = 45,980,379,709.44/197,331.20
  6. Step 6: Final answer
    x = 233,011.20

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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.