Finding the Fourth Proportional to 292,325.49, 438,438.83 and 81,915.03
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Solution
The fourth proportional to 292,325.49, 438,438.83 and 81,915.03 is: 122,858.70
Step by Step Solution
- Step 1: Write the proportion equation
292,325.49 : 438,438.83 = 81,915.03 : x - Step 2: Convert to fraction form
292,325.49/438,438.83 = 81,915.03/x - Step 3: Cross multiply
292,325.49x = 438,438.83 × 81,915.03 - Step 4: Simplify right side
292,325.49x = 35,914,729,503.04 - Step 5: Solve for x
x = 35,914,729,503.04/292,325.49 - Step 6: Final answer
x = 122,858.70
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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.