Finding the Fourth Proportional to 205,515.23, 308,239.23 and 72,364.19
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Solution
The fourth proportional to 205,515.23, 308,239.23 and 72,364.19 is: 108,534.45
Step by Step Solution
- Step 1: Write the proportion equation
205,515.23 : 308,239.23 = 72,364.19 : x - Step 2: Convert to fraction form
205,515.23/308,239.23 = 72,364.19/x - Step 3: Cross multiply
205,515.23x = 308,239.23 × 72,364.19 - Step 4: Simplify right side
205,515.23x = 22,305,482,205.17 - Step 5: Solve for x
x = 22,305,482,205.17/205,515.23 - Step 6: Final answer
x = 108,534.45
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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.