Finding the Fourth Proportional to 355,885.09, 491,106.78 and 212,724.07
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Solution
The fourth proportional to 355,885.09, 491,106.78 and 212,724.07 is: 293,550.46
Step by Step Solution
- Step 1: Write the proportion equation
355,885.09 : 491,106.78 = 212,724.07 : x - Step 2: Convert to fraction form
355,885.09/491,106.78 = 212,724.07/x - Step 3: Cross multiply
355,885.09x = 491,106.78 × 212,724.07 - Step 4: Simplify right side
355,885.09x = 104,470,233,046.20 - Step 5: Solve for x
x = 104,470,233,046.20/355,885.09 - Step 6: Final answer
x = 293,550.46
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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.