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Finding the Fourth Proportional to 404,745.72, 558,546.12 and 223,457.64

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Solution

The fourth proportional to 404,745.72, 558,546.12 and 223,457.64 is: 308,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,745.72 : 558,546.12 = 223,457.64 : x
  2. Step 2: Convert to fraction form
    404,745.72/558,546.12 = 223,457.64/x
  3. Step 3: Cross multiply
    404,745.72x = 558,546.12 × 223,457.64
  4. Step 4: Simplify right side
    404,745.72x = 124,811,397,806.36
  5. Step 5: Solve for x
    x = 124,811,397,806.36/404,745.72
  6. Step 6: Final answer
    x = 308,369.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.