Finding the Fourth Proportional to 219,619.26, 303,107.09 and 139,054.26
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Solution
The fourth proportional to 219,619.26, 303,107.09 and 139,054.26 is: 191,915.46
Step by Step Solution
- Step 1: Write the proportion equation
219,619.26 : 303,107.09 = 139,054.26 : x - Step 2: Convert to fraction form
219,619.26/303,107.09 = 139,054.26/x - Step 3: Cross multiply
219,619.26x = 303,107.09 × 139,054.26 - Step 4: Simplify right side
219,619.26x = 42,148,331,405.43 - Step 5: Solve for x
x = 42,148,331,405.43/219,619.26 - Step 6: Final answer
x = 191,915.46
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1.5x scale
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.