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Finding the Fourth Proportional to 315,173.37, 472,674.20 and 104,783.97

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Solution

The fourth proportional to 315,173.37, 472,674.20 and 104,783.97 is: 157,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,173.37 : 472,674.20 = 104,783.97 : x
  2. Step 2: Convert to fraction form
    315,173.37/472,674.20 = 104,783.97/x
  3. Step 3: Cross multiply
    315,173.37x = 472,674.20 × 104,783.97
  4. Step 4: Simplify right side
    315,173.37x = 49,528,678,668.65
  5. Step 5: Solve for x
    x = 49,528,678,668.65/315,173.37
  6. Step 6: Final answer
    x = 157,147.41

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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.