Finding the Fourth Proportional to 251,560.80, 347,134.92 and 138,390.84
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Solution
The fourth proportional to 251,560.80, 347,134.92 and 138,390.84 is: 190,968.92
Step by Step Solution
- Step 1: Write the proportion equation
251,560.80 : 347,134.92 = 138,390.84 : x - Step 2: Convert to fraction form
251,560.80/347,134.92 = 138,390.84/x - Step 3: Cross multiply
251,560.80x = 347,134.92 × 138,390.84 - Step 4: Simplify right side
251,560.80x = 48,040,293,172.13 - Step 5: Solve for x
x = 48,040,293,172.13/251,560.80 - Step 6: Final answer
x = 190,968.92
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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.