Finding the Fourth Proportional to 378,493.98, 567,773.76 and 138,673.02
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Solution
The fourth proportional to 378,493.98, 567,773.76 and 138,673.02 is: 208,021.54
Step by Step Solution
- Step 1: Write the proportion equation
378,493.98 : 567,773.76 = 138,673.02 : x - Step 2: Convert to fraction form
378,493.98/567,773.76 = 138,673.02/x - Step 3: Cross multiply
378,493.98x = 567,773.76 × 138,673.02 - Step 4: Simplify right side
378,493.98x = 78,734,901,975.96 - Step 5: Solve for x
x = 78,734,901,975.96/378,493.98 - Step 6: Final answer
x = 208,021.54
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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.