Finding the Fourth Proportional to 221,883.53, 306,164.09 and 126,392.09
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Solution
The fourth proportional to 221,883.53, 306,164.09 and 126,392.09 is: 174,401.04
Step by Step Solution
- Step 1: Write the proportion equation
221,883.53 : 306,164.09 = 126,392.09 : x - Step 2: Convert to fraction form
221,883.53/306,164.09 = 126,392.09/x - Step 3: Cross multiply
221,883.53x = 306,164.09 × 126,392.09 - Step 4: Simplify right side
221,883.53x = 38,696,718,586.09 - Step 5: Solve for x
x = 38,696,718,586.09/221,883.53 - Step 6: Final answer
x = 174,401.04
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1.5x scale
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.