Finding the Fourth Proportional to 221,998.23, 306,351.33 and 121,394.07
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Solution
The fourth proportional to 221,998.23, 306,351.33 and 121,394.07 is: 167,520.41
Step by Step Solution
- Step 1: Write the proportion equation
221,998.23 : 306,351.33 = 121,394.07 : x - Step 2: Convert to fraction form
221,998.23/306,351.33 = 121,394.07/x - Step 3: Cross multiply
221,998.23x = 306,351.33 × 121,394.07 - Step 4: Simplify right side
221,998.23x = 37,189,234,798.61 - Step 5: Solve for x
x = 37,189,234,798.61/221,998.23 - Step 6: Final answer
x = 167,520.41
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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.