Finding the Fourth Proportional to 213,355.36, 294,428.64 and 117,860.05
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Solution
The fourth proportional to 213,355.36, 294,428.64 and 117,860.05 is: 162,645.90
Step by Step Solution
- Step 1: Write the proportion equation
213,355.36 : 294,428.64 = 117,860.05 : x - Step 2: Convert to fraction form
213,355.36/294,428.64 = 117,860.05/x - Step 3: Cross multiply
213,355.36x = 294,428.64 × 117,860.05 - Step 4: Simplify right side
213,355.36x = 34,701,374,231.83 - Step 5: Solve for x
x = 34,701,374,231.83/213,355.36 - Step 6: Final answer
x = 162,645.90
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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.