Finding the Fourth Proportional to 331,887.51, 497,675.75 and 121,378.23
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Solution
The fourth proportional to 331,887.51, 497,675.75 and 121,378.23 is: 182,010.47
Step by Step Solution
- Step 1: Write the proportion equation
331,887.51 : 497,675.75 = 121,378.23 : x - Step 2: Convert to fraction form
331,887.51/497,675.75 = 121,378.23/x - Step 3: Cross multiply
331,887.51x = 497,675.75 × 121,378.23 - Step 4: Simplify right side
331,887.51x = 60,407,001,042.03 - Step 5: Solve for x
x = 60,407,001,042.03/331,887.51 - Step 6: Final answer
x = 182,010.47
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1.5x scale
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.