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Finding the Fourth Proportional to 262,365.14, 393,738.88 and 104,638.70

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Solution

The fourth proportional to 262,365.14, 393,738.88 and 104,638.70 is: 157,034.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,365.14 : 393,738.88 = 104,638.70 : x
  2. Step 2: Convert to fraction form
    262,365.14/393,738.88 = 104,638.70/x
  3. Step 3: Cross multiply
    262,365.14x = 393,738.88 × 104,638.70
  4. Step 4: Simplify right side
    262,365.14x = 41,200,324,542.66
  5. Step 5: Solve for x
    x = 41,200,324,542.66/262,365.14
  6. Step 6: Final answer
    x = 157,034.29

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1.5x scale

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.