Finding the Fourth Proportional to 252,175.68, 347,995.80 and 138,998.88
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Solution
The fourth proportional to 252,175.68, 347,995.80 and 138,998.88 is: 191,814.80
Step by Step Solution
- Step 1: Write the proportion equation
252,175.68 : 347,995.80 = 138,998.88 : x - Step 2: Convert to fraction form
252,175.68/347,995.80 = 138,998.88/x - Step 3: Cross multiply
252,175.68x = 347,995.80 × 138,998.88 - Step 4: Simplify right side
252,175.68x = 48,371,026,444.70 - Step 5: Solve for x
x = 48,371,026,444.70/252,175.68 - Step 6: Final answer
x = 191,814.80
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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.