Finding the Fourth Proportional to 270,582.74, 405,759.92 and 81,070.05
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Solution
The fourth proportional to 270,582.74, 405,759.92 and 81,070.05 is: 121,570.86
Step by Step Solution
- Step 1: Write the proportion equation
270,582.74 : 405,759.92 = 81,070.05 : x - Step 2: Convert to fraction form
270,582.74/405,759.92 = 81,070.05/x - Step 3: Cross multiply
270,582.74x = 405,759.92 × 81,070.05 - Step 4: Simplify right side
270,582.74x = 32,894,976,597.05 - Step 5: Solve for x
x = 32,894,976,597.05/270,582.74 - Step 6: Final answer
x = 121,570.86
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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.