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Finding the Fourth Proportional to 315,093.80, 472,986.30 and 196,898.60

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Solution

The fourth proportional to 315,093.80, 472,986.30 and 196,898.60 is: 295,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,093.80 : 472,986.30 = 196,898.60 : x
  2. Step 2: Convert to fraction form
    315,093.80/472,986.30 = 196,898.60/x
  3. Step 3: Cross multiply
    315,093.80x = 472,986.30 × 196,898.60
  4. Step 4: Simplify right side
    315,093.80x = 93,130,340,289.18
  5. Step 5: Solve for x
    x = 93,130,340,289.18/315,093.80
  6. Step 6: Final answer
    x = 295,563.86

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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.