Finding the Fourth Proportional to 221,938.68, 306,296.46 and 121,351.80
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Solution
The fourth proportional to 221,938.68, 306,296.46 and 121,351.80 is: 167,477.01
Step by Step Solution
- Step 1: Write the proportion equation
221,938.68 : 306,296.46 = 121,351.80 : x - Step 2: Convert to fraction form
221,938.68/306,296.46 = 121,351.80/x - Step 3: Cross multiply
221,938.68x = 306,296.46 × 121,351.80 - Step 4: Simplify right side
221,938.68x = 37,169,626,754.63 - Step 5: Solve for x
x = 37,169,626,754.63/221,938.68 - Step 6: Final answer
x = 167,477.01
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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.