Finding the Fourth Proportional to 236,068.84, 325,770.96 and 128,639.80
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Solution
The fourth proportional to 236,068.84, 325,770.96 and 128,639.80 is: 177,520.72
Step by Step Solution
- Step 1: Write the proportion equation
236,068.84 : 325,770.96 = 128,639.80 : x - Step 2: Convert to fraction form
236,068.84/325,770.96 = 128,639.80/x - Step 3: Cross multiply
236,068.84x = 325,770.96 × 128,639.80 - Step 4: Simplify right side
236,068.84x = 41,907,111,140.21 - Step 5: Solve for x
x = 41,907,111,140.21/236,068.84 - Step 6: Final answer
x = 177,520.72
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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.