Finding the Fourth Proportional to 258,618.06, 356,890.59 and 145,441.62
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Solution
The fourth proportional to 258,618.06, 356,890.59 and 145,441.62 is: 200,708.12
Step by Step Solution
- Step 1: Write the proportion equation
258,618.06 : 356,890.59 = 145,441.62 : x - Step 2: Convert to fraction form
258,618.06/356,890.59 = 145,441.62/x - Step 3: Cross multiply
258,618.06x = 356,890.59 × 145,441.62 - Step 4: Simplify right side
258,618.06x = 51,906,745,572.36 - Step 5: Solve for x
x = 51,906,745,572.36/258,618.06 - Step 6: Final answer
x = 200,708.12
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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.