Finding the Fourth Proportional to 249,921.20, 374,843.29 and 81,441.09
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Solution
The fourth proportional to 249,921.20, 374,843.29 and 81,441.09 is: 122,149.09
Step by Step Solution
- Step 1: Write the proportion equation
249,921.20 : 374,843.29 = 81,441.09 : x - Step 2: Convert to fraction form
249,921.20/374,843.29 = 81,441.09/x - Step 3: Cross multiply
249,921.20x = 374,843.29 × 81,441.09 - Step 4: Simplify right side
249,921.20x = 30,527,645,913.18 - Step 5: Solve for x
x = 30,527,645,913.18/249,921.20 - Step 6: Final answer
x = 122,149.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.