Finding the Fourth Proportional to 252,153.24, 347,973.09 and 138,975.99
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Solution
The fourth proportional to 252,153.24, 347,973.09 and 138,975.99 is: 191,787.76
Step by Step Solution
- Step 1: Write the proportion equation
252,153.24 : 347,973.09 = 138,975.99 : x - Step 2: Convert to fraction form
252,153.24/347,973.09 = 138,975.99/x - Step 3: Cross multiply
252,153.24x = 347,973.09 × 138,975.99 - Step 4: Simplify right side
252,153.24x = 48,359,904,676.11 - Step 5: Solve for x
x = 48,359,904,676.11/252,153.24 - Step 6: Final answer
x = 191,787.76
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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.