Finding the Fourth Proportional to 251,468.19, 347,019.17 and 138,290.94
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Solution
The fourth proportional to 251,468.19, 347,019.17 and 138,290.94 is: 190,837.68
Step by Step Solution
- Step 1: Write the proportion equation
251,468.19 : 347,019.17 = 138,290.94 : x - Step 2: Convert to fraction form
251,468.19/347,019.17 = 138,290.94/x - Step 3: Cross multiply
251,468.19x = 347,019.17 × 138,290.94 - Step 4: Simplify right side
251,468.19x = 47,989,606,525.87 - Step 5: Solve for x
x = 47,989,606,525.87/251,468.19 - Step 6: Final answer
x = 190,837.68
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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.