Finding the Fourth Proportional to 207,325.69, 286,197.74 and 139,382.07
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Solution
The fourth proportional to 207,325.69, 286,197.74 and 139,382.07 is: 192,406.61
Step by Step Solution
- Step 1: Write the proportion equation
207,325.69 : 286,197.74 = 139,382.07 : x - Step 2: Convert to fraction form
207,325.69/286,197.74 = 139,382.07/x - Step 3: Cross multiply
207,325.69x = 286,197.74 × 139,382.07 - Step 4: Simplify right side
207,325.69x = 39,890,834,367.54 - Step 5: Solve for x
x = 39,890,834,367.54/207,325.69 - Step 6: Final answer
x = 192,406.61
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1.5x scale
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.