Finding the Fourth Proportional to 138,397.74, 207,545.58 and 49,629.84
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Solution
The fourth proportional to 138,397.74, 207,545.58 and 49,629.84 is: 74,426.46
Step by Step Solution
- Step 1: Write the proportion equation
138,397.74 : 207,545.58 = 49,629.84 : x - Step 2: Convert to fraction form
138,397.74/207,545.58 = 49,629.84/x - Step 3: Cross multiply
138,397.74x = 207,545.58 × 49,629.84 - Step 4: Simplify right side
138,397.74x = 10,300,453,928.11 - Step 5: Solve for x
x = 10,300,453,928.11/138,397.74 - Step 6: Final answer
x = 74,426.46
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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.