Finding the Fourth Proportional to 208,975.84, 313,478.64 and 103,688.80
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Solution
The fourth proportional to 208,975.84, 313,478.64 and 103,688.80 is: 155,540.58
Step by Step Solution
- Step 1: Write the proportion equation
208,975.84 : 313,478.64 = 103,688.80 : x - Step 2: Convert to fraction form
208,975.84/313,478.64 = 103,688.80/x - Step 3: Cross multiply
208,975.84x = 313,478.64 × 103,688.80 - Step 4: Simplify right side
208,975.84x = 32,504,224,007.23 - Step 5: Solve for x
x = 32,504,224,007.23/208,975.84 - Step 6: Final answer
x = 155,540.58
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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.