Finding the Fourth Proportional to 246,896.19, 340,715.69 and 138,000.38
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Solution
The fourth proportional to 246,896.19, 340,715.69 and 138,000.38 is: 190,439.94
Step by Step Solution
- Step 1: Write the proportion equation
246,896.19 : 340,715.69 = 138,000.38 : x - Step 2: Convert to fraction form
246,896.19/340,715.69 = 138,000.38/x - Step 3: Cross multiply
246,896.19x = 340,715.69 × 138,000.38 - Step 4: Simplify right side
246,896.19x = 47,018,894,732.41 - Step 5: Solve for x
x = 47,018,894,732.41/246,896.19 - Step 6: Final answer
x = 190,439.94
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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.