Finding the Fourth Proportional to 246,896.31, 340,715.84 and 138,000.49
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Solution
The fourth proportional to 246,896.31, 340,715.84 and 138,000.49 is: 190,440.08
Step by Step Solution
- Step 1: Write the proportion equation
246,896.31 : 340,715.84 = 138,000.49 : x - Step 2: Convert to fraction form
246,896.31/340,715.84 = 138,000.49/x - Step 3: Cross multiply
246,896.31x = 340,715.84 × 138,000.49 - Step 4: Simplify right side
246,896.31x = 47,018,953,215.76 - Step 5: Solve for x
x = 47,018,953,215.76/246,896.31 - Step 6: Final answer
x = 190,440.08
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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.