Finding the Fourth Proportional to 258,108.68, 356,319.48 and 161,366.28
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Solution
The fourth proportional to 258,108.68, 356,319.48 and 161,366.28 is: 222,766.43
Step by Step Solution
- Step 1: Write the proportion equation
258,108.68 : 356,319.48 = 161,366.28 : x - Step 2: Convert to fraction form
258,108.68/356,319.48 = 161,366.28/x - Step 3: Cross multiply
258,108.68x = 356,319.48 × 161,366.28 - Step 4: Simplify right side
258,108.68x = 57,497,947,794.22 - Step 5: Solve for x
x = 57,497,947,794.22/258,108.68 - Step 6: Final answer
x = 222,766.43
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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.