Finding the Fourth Proportional to 221,751.36, 306,017.18 and 126,258.09
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Solution
The fourth proportional to 221,751.36, 306,017.18 and 126,258.09 is: 174,236.33
Step by Step Solution
- Step 1: Write the proportion equation
221,751.36 : 306,017.18 = 126,258.09 : x - Step 2: Convert to fraction form
221,751.36/306,017.18 = 126,258.09/x - Step 3: Cross multiply
221,751.36x = 306,017.18 × 126,258.09 - Step 4: Simplify right side
221,751.36x = 38,637,144,022.70 - Step 5: Solve for x
x = 38,637,144,022.70/221,751.36 - Step 6: Final answer
x = 174,236.33
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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.