Finding the Fourth Proportional to 221,996.91, 306,349.52 and 121,392.75
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Solution
The fourth proportional to 221,996.91, 306,349.52 and 121,392.75 is: 167,518.59
Step by Step Solution
- Step 1: Write the proportion equation
221,996.91 : 306,349.52 = 121,392.75 : x - Step 2: Convert to fraction form
221,996.91/306,349.52 = 121,392.75/x - Step 3: Cross multiply
221,996.91x = 306,349.52 × 121,392.75 - Step 4: Simplify right side
221,996.91x = 37,188,610,087.02 - Step 5: Solve for x
x = 37,188,610,087.02/221,996.91 - Step 6: Final answer
x = 167,518.59
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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.