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Finding the Fourth Proportional to 262,997.03, 394,495.54 and 218,655.60

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Solution

The fourth proportional to 262,997.03, 394,495.54 and 218,655.60 is: 327,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,997.03 : 394,495.54 = 218,655.60 : x
  2. Step 2: Convert to fraction form
    262,997.03/394,495.54 = 218,655.60/x
  3. Step 3: Cross multiply
    262,997.03x = 394,495.54 × 218,655.60
  4. Step 4: Simplify right side
    262,997.03x = 86,258,658,449.39
  5. Step 5: Solve for x
    x = 86,258,658,449.39/262,997.03
  6. Step 6: Final answer
    x = 327,983.40

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Similar ratio
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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.