Finding the Fourth Proportional to 221,842.10, 306,196.50 and 126,405.08
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Solution
The fourth proportional to 221,842.10, 306,196.50 and 126,405.08 is: 174,470.01
Step by Step Solution
- Step 1: Write the proportion equation
221,842.10 : 306,196.50 = 126,405.08 : x - Step 2: Convert to fraction form
221,842.10/306,196.50 = 126,405.08/x - Step 3: Cross multiply
221,842.10x = 306,196.50 × 126,405.08 - Step 4: Simplify right side
221,842.10x = 38,704,793,078.22 - Step 5: Solve for x
x = 38,704,793,078.22/221,842.10 - Step 6: Final answer
x = 174,470.01
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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.