Finding the Fourth Proportional to 207,163.40, 309,226.76 and 191,948.54
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Solution
The fourth proportional to 207,163.40, 309,226.76 and 191,948.54 is: 286,515.98
Step by Step Solution
- Step 1: Write the proportion equation
207,163.40 : 309,226.76 = 191,948.54 : x - Step 2: Convert to fraction form
207,163.40/309,226.76 = 191,948.54/x - Step 3: Cross multiply
207,163.40x = 309,226.76 × 191,948.54 - Step 4: Simplify right side
207,163.40x = 59,355,624,924.25 - Step 5: Solve for x
x = 59,355,624,924.25/207,163.40 - Step 6: Final answer
x = 286,515.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.