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Finding the Fourth Proportional to 628,369.92, 942,451.20 and 201,847.68

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Solution

The fourth proportional to 628,369.92, 942,451.20 and 201,847.68 is: 302,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,369.92 : 942,451.20 = 201,847.68 : x
  2. Step 2: Convert to fraction form
    628,369.92/942,451.20 = 201,847.68/x
  3. Step 3: Cross multiply
    628,369.92x = 942,451.20 × 201,847.68
  4. Step 4: Simplify right side
    628,369.92x = 190,231,588,233.22
  5. Step 5: Solve for x
    x = 190,231,588,233.22/628,369.92
  6. Step 6: Final answer
    x = 302,738.22

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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.