Finding the Fourth Proportional to 221,974.60, 306,344.96 and 126,512.06
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Solution
The fourth proportional to 221,974.60, 306,344.96 and 126,512.06 is: 174,598.05
Step by Step Solution
- Step 1: Write the proportion equation
221,974.60 : 306,344.96 = 126,512.06 : x - Step 2: Convert to fraction form
221,974.60/306,344.96 = 126,512.06/x - Step 3: Cross multiply
221,974.60x = 306,344.96 × 126,512.06 - Step 4: Simplify right side
221,974.60x = 38,756,331,960.22 - Step 5: Solve for x
x = 38,756,331,960.22/221,974.60 - Step 6: Final answer
x = 174,598.05
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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.