Finding the Fourth Proportional to 207,951.30, 311,926.95 and 114,639.30
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Solution
The fourth proportional to 207,951.30, 311,926.95 and 114,639.30 is: 171,958.95
Step by Step Solution
- Step 1: Write the proportion equation
207,951.30 : 311,926.95 = 114,639.30 : x - Step 2: Convert to fraction form
207,951.30/311,926.95 = 114,639.30/x - Step 3: Cross multiply
207,951.30x = 311,926.95 × 114,639.30 - Step 4: Simplify right side
207,951.30x = 35,759,087,199.14 - Step 5: Solve for x
x = 35,759,087,199.14/207,951.30 - Step 6: Final answer
x = 171,958.95
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1.5x scale
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.