Finding the Fourth Proportional to 485,402.09, 727,531.27 and 218,850.53
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Solution
The fourth proportional to 485,402.09, 727,531.27 and 218,850.53 is: 328,017.96
Step by Step Solution
- Step 1: Write the proportion equation
485,402.09 : 727,531.27 = 218,850.53 : x - Step 2: Convert to fraction form
485,402.09/727,531.27 = 218,850.53/x - Step 3: Cross multiply
485,402.09x = 727,531.27 × 218,850.53 - Step 4: Simplify right side
485,402.09x = 159,220,599,846.29 - Step 5: Solve for x
x = 159,220,599,846.29/485,402.09 - Step 6: Final answer
x = 328,017.96
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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.