Finding the Fourth Proportional to 251,697.52, 347,342.64 and 138,517.84
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Solution
The fourth proportional to 251,697.52, 347,342.64 and 138,517.84 is: 191,154.65
Step by Step Solution
- Step 1: Write the proportion equation
251,697.52 : 347,342.64 = 138,517.84 : x - Step 2: Convert to fraction form
251,697.52/347,342.64 = 138,517.84/x - Step 3: Cross multiply
251,697.52x = 347,342.64 × 138,517.84 - Step 4: Simplify right side
251,697.52x = 48,113,152,232.70 - Step 5: Solve for x
x = 48,113,152,232.70/251,697.52 - Step 6: Final answer
x = 191,154.65
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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.