Finding the Fourth Proportional to 388,682.25, 536,515.74 and 227,589.09
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Solution
The fourth proportional to 388,682.25, 536,515.74 and 227,589.09 is: 314,151.54
Step by Step Solution
- Step 1: Write the proportion equation
388,682.25 : 536,515.74 = 227,589.09 : x - Step 2: Convert to fraction form
388,682.25/536,515.74 = 227,589.09/x - Step 3: Cross multiply
388,682.25x = 536,515.74 × 227,589.09 - Step 4: Simplify right side
388,682.25x = 122,105,129,037.28 - Step 5: Solve for x
x = 122,105,129,037.28/388,682.25 - Step 6: Final answer
x = 314,151.54
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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.