Finding the Fourth Proportional to 221,966.97, 306,315.60 and 121,364.97
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Solution
The fourth proportional to 221,966.97, 306,315.60 and 121,364.97 is: 167,484.30
Step by Step Solution
- Step 1: Write the proportion equation
221,966.97 : 306,315.60 = 121,364.97 : x - Step 2: Convert to fraction form
221,966.97/306,315.60 = 121,364.97/x - Step 3: Cross multiply
221,966.97x = 306,315.60 × 121,364.97 - Step 4: Simplify right side
221,966.97x = 37,175,981,466.13 - Step 5: Solve for x
x = 37,175,981,466.13/221,966.97 - Step 6: Final answer
x = 167,484.30
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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.