Finding the Fourth Proportional to 345,789.18, 515,979.32 and 273,897.18
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Solution
The fourth proportional to 345,789.18, 515,979.32 and 273,897.18 is: 408,703.59
Step by Step Solution
- Step 1: Write the proportion equation
345,789.18 : 515,979.32 = 273,897.18 : x - Step 2: Convert to fraction form
345,789.18/515,979.32 = 273,897.18/x - Step 3: Cross multiply
345,789.18x = 515,979.32 × 273,897.18 - Step 4: Simplify right side
345,789.18x = 141,325,279,316.83 - Step 5: Solve for x
x = 141,325,279,316.83/345,789.18 - Step 6: Final answer
x = 408,703.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.