Finding the Fourth Proportional to 246,896.51, 340,716.12 and 138,000.70
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Solution
The fourth proportional to 246,896.51, 340,716.12 and 138,000.70 is: 190,440.37
Step by Step Solution
- Step 1: Write the proportion equation
246,896.51 : 340,716.12 = 138,000.70 : x - Step 2: Convert to fraction form
246,896.51/340,716.12 = 138,000.70/x - Step 3: Cross multiply
246,896.51x = 340,716.12 × 138,000.70 - Step 4: Simplify right side
246,896.51x = 47,019,061,357.70 - Step 5: Solve for x
x = 47,019,061,357.70/246,896.51 - Step 6: Final answer
x = 190,440.37
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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.