Finding the Fourth Proportional to 231,402.48, 319,342.68 and 130,806.96
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Solution
The fourth proportional to 231,402.48, 319,342.68 and 130,806.96 is: 180,517.71
Step by Step Solution
- Step 1: Write the proportion equation
231,402.48 : 319,342.68 = 130,806.96 : x - Step 2: Convert to fraction form
231,402.48/319,342.68 = 130,806.96/x - Step 3: Cross multiply
231,402.48x = 319,342.68 × 130,806.96 - Step 4: Simplify right side
231,402.48x = 41,772,245,169.05 - Step 5: Solve for x
x = 41,772,245,169.05/231,402.48 - Step 6: Final answer
x = 180,517.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.