Finding the Fourth Proportional to 251,629.19, 347,248.29 and 136,907.89
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Solution
The fourth proportional to 251,629.19, 347,248.29 and 136,907.89 is: 188,932.88
Step by Step Solution
- Step 1: Write the proportion equation
251,629.19 : 347,248.29 = 136,907.89 : x - Step 2: Convert to fraction form
251,629.19/347,248.29 = 136,907.89/x - Step 3: Cross multiply
251,629.19x = 347,248.29 × 136,907.89 - Step 4: Simplify right side
251,629.19x = 47,541,028,269.23 - Step 5: Solve for x
x = 47,541,028,269.23/251,629.19 - Step 6: Final answer
x = 188,932.88
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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.