Finding the Fourth Proportional to 221,927.19, 306,184.55 and 126,366.23
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Solution
The fourth proportional to 221,927.19, 306,184.55 and 126,366.23 is: 174,342.70
Step by Step Solution
- Step 1: Write the proportion equation
221,927.19 : 306,184.55 = 126,366.23 : x - Step 2: Convert to fraction form
221,927.19/306,184.55 = 126,366.23/x - Step 3: Cross multiply
221,927.19x = 306,184.55 × 126,366.23 - Step 4: Simplify right side
221,927.19x = 38,691,385,104.99 - Step 5: Solve for x
x = 38,691,385,104.99/221,927.19 - Step 6: Final answer
x = 174,342.70
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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.