Finding the Fourth Proportional to 392,415.29, 541,543.46 and 220,346.99
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Solution
The fourth proportional to 392,415.29, 541,543.46 and 220,346.99 is: 304,084.66
Step by Step Solution
- Step 1: Write the proportion equation
392,415.29 : 541,543.46 = 220,346.99 : x - Step 2: Convert to fraction form
392,415.29/541,543.46 = 220,346.99/x - Step 3: Cross multiply
392,415.29x = 541,543.46 × 220,346.99 - Step 4: Simplify right side
392,415.29x = 119,327,467,555.73 - Step 5: Solve for x
x = 119,327,467,555.73/392,415.29 - Step 6: Final answer
x = 304,084.66
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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.