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Finding the Fourth Proportional to 289,563.06, 399,600.96 and 162,235.92

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Solution

The fourth proportional to 289,563.06, 399,600.96 and 162,235.92 is: 223,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,563.06 : 399,600.96 = 162,235.92 : x
  2. Step 2: Convert to fraction form
    289,563.06/399,600.96 = 162,235.92/x
  3. Step 3: Cross multiply
    289,563.06x = 399,600.96 × 162,235.92
  4. Step 4: Simplify right side
    289,563.06x = 64,829,629,378.48
  5. Step 5: Solve for x
    x = 64,829,629,378.48/289,563.06
  6. Step 6: Final answer
    x = 223,887.78

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Why These Related Problems?

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