Finding the Fourth Proportional to 138,173.11, 207,260.01 and 38,338.66
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Solution
The fourth proportional to 138,173.11, 207,260.01 and 38,338.66 is: 57,508.09
Step by Step Solution
- Step 1: Write the proportion equation
138,173.11 : 207,260.01 = 38,338.66 : x - Step 2: Convert to fraction form
138,173.11/207,260.01 = 38,338.66/x - Step 3: Cross multiply
138,173.11x = 207,260.01 × 38,338.66 - Step 4: Simplify right side
138,173.11x = 7,946,071,054.99 - Step 5: Solve for x
x = 7,946,071,054.99/138,173.11 - Step 6: Final answer
x = 57,508.09
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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.