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Finding the Fourth Proportional to 197,152.80, 295,772.40 and 78,794.40

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Solution

The fourth proportional to 197,152.80, 295,772.40 and 78,794.40 is: 118,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,152.80 : 295,772.40 = 78,794.40 : x
  2. Step 2: Convert to fraction form
    197,152.80/295,772.40 = 78,794.40/x
  3. Step 3: Cross multiply
    197,152.80x = 295,772.40 × 78,794.40
  4. Step 4: Simplify right side
    197,152.80x = 23,305,208,794.56
  5. Step 5: Solve for x
    x = 23,305,208,794.56/197,152.80
  6. Step 6: Final answer
    x = 118,208.87

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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.