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Finding the Fourth Proportional to 257,633.19, 385,838.89 and 204,153.22

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Solution

The fourth proportional to 257,633.19, 385,838.89 and 204,153.22 is: 305,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,633.19 : 385,838.89 = 204,153.22 : x
  2. Step 2: Convert to fraction form
    257,633.19/385,838.89 = 204,153.22/x
  3. Step 3: Cross multiply
    257,633.19x = 385,838.89 × 204,153.22
  4. Step 4: Simplify right side
    257,633.19x = 78,770,253,457.59
  5. Step 5: Solve for x
    x = 78,770,253,457.59/257,633.19
  6. Step 6: Final answer
    x = 305,745.75

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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.