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Finding the Fourth Proportional to 170,470.60, 255,744.30 and 100,313.80

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Solution

The fourth proportional to 170,470.60, 255,744.30 and 100,313.80 is: 150,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,470.60 : 255,744.30 = 100,313.80 : x
  2. Step 2: Convert to fraction form
    170,470.60/255,744.30 = 100,313.80/x
  3. Step 3: Cross multiply
    170,470.60x = 255,744.30 × 100,313.80
  4. Step 4: Simplify right side
    170,470.60x = 25,654,682,561.34
  5. Step 5: Solve for x
    x = 25,654,682,561.34/170,470.60
  6. Step 6: Final answer
    x = 150,493.30

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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.