Finding the Fourth Proportional to 221,887.10, 306,203.46 and 126,409.97
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Solution
The fourth proportional to 221,887.10, 306,203.46 and 126,409.97 is: 174,445.34
Step by Step Solution
- Step 1: Write the proportion equation
221,887.10 : 306,203.46 = 126,409.97 : x - Step 2: Convert to fraction form
221,887.10/306,203.46 = 126,409.97/x - Step 3: Cross multiply
221,887.10x = 306,203.46 × 126,409.97 - Step 4: Simplify right side
221,887.10x = 38,707,169,828.16 - Step 5: Solve for x
x = 38,707,169,828.16/221,887.10 - Step 6: Final answer
x = 174,445.34
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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.