Finding the Fourth Proportional to 138,464.24, 207,677.89 and 38,616.07
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Solution
The fourth proportional to 138,464.24, 207,677.89 and 38,616.07 is: 57,918.95
Step by Step Solution
- Step 1: Write the proportion equation
138,464.24 : 207,677.89 = 38,616.07 : x - Step 2: Convert to fraction form
138,464.24/207,677.89 = 38,616.07/x - Step 3: Cross multiply
138,464.24x = 207,677.89 × 38,616.07 - Step 4: Simplify right side
138,464.24x = 8,019,703,321.96 - Step 5: Solve for x
x = 8,019,703,321.96/138,464.24 - Step 6: Final answer
x = 57,918.95
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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.