Finding the Fourth Proportional to 434,691.36, 652,078.49 and 135,091.26
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Solution
The fourth proportional to 434,691.36, 652,078.49 and 135,091.26 is: 202,649.77
Step by Step Solution
- Step 1: Write the proportion equation
434,691.36 : 652,078.49 = 135,091.26 : x - Step 2: Convert to fraction form
434,691.36/652,078.49 = 135,091.26/x - Step 3: Cross multiply
434,691.36x = 652,078.49 × 135,091.26 - Step 4: Simplify right side
434,691.36x = 88,090,104,157.54 - Step 5: Solve for x
x = 88,090,104,157.54/434,691.36 - Step 6: Final answer
x = 202,649.77
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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.