Finding the Fourth Proportional to 388,353.68, 536,093.91 and 261,103.07
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Solution
The fourth proportional to 388,353.68, 536,093.91 and 261,103.07 is: 360,433.73
Step by Step Solution
- Step 1: Write the proportion equation
388,353.68 : 536,093.91 = 261,103.07 : x - Step 2: Convert to fraction form
388,353.68/536,093.91 = 261,103.07/x - Step 3: Cross multiply
388,353.68x = 536,093.91 × 261,103.07 - Step 4: Simplify right side
388,353.68x = 139,975,765,709.30 - Step 5: Solve for x
x = 139,975,765,709.30/388,353.68 - Step 6: Final answer
x = 360,433.73
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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.