Finding the Fourth Proportional to 282,099.36, 389,290.08 and 157,918.62
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Solution
The fourth proportional to 282,099.36, 389,290.08 and 157,918.62 is: 217,923.76
Step by Step Solution
- Step 1: Write the proportion equation
282,099.36 : 389,290.08 = 157,918.62 : x - Step 2: Convert to fraction form
282,099.36/389,290.08 = 157,918.62/x - Step 3: Cross multiply
282,099.36x = 389,290.08 × 157,918.62 - Step 4: Simplify right side
282,099.36x = 61,476,152,213.29 - Step 5: Solve for x
x = 61,476,152,213.29/282,099.36 - Step 6: Final answer
x = 217,923.76
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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.