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Finding the Fourth Proportional to 490,632.80, 735,997.80 and 170,735.45

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Solution

The fourth proportional to 490,632.80, 735,997.80 and 170,735.45 is: 256,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,632.80 : 735,997.80 = 170,735.45 : x
  2. Step 2: Convert to fraction form
    490,632.80/735,997.80 = 170,735.45/x
  3. Step 3: Cross multiply
    490,632.80x = 735,997.80 × 170,735.45
  4. Step 4: Simplify right side
    490,632.80x = 125,660,915,582.01
  5. Step 5: Solve for x
    x = 125,660,915,582.01/490,632.80
  6. Step 6: Final answer
    x = 256,120.09

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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.