Finding the Fourth Proportional to 251,949.24, 347,689.94 and 138,771.99
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Solution
The fourth proportional to 251,949.24, 347,689.94 and 138,771.99 is: 191,505.34
Step by Step Solution
- Step 1: Write the proportion equation
251,949.24 : 347,689.94 = 138,771.99 : x - Step 2: Convert to fraction form
251,949.24/347,689.94 = 138,771.99/x - Step 3: Cross multiply
251,949.24x = 347,689.94 × 138,771.99 - Step 4: Simplify right side
251,949.24x = 48,249,623,138.33 - Step 5: Solve for x
x = 48,249,623,138.33/251,949.24 - Step 6: Final answer
x = 191,505.34
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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.