Finding the Fourth Proportional to 258,135.81, 356,231.57 and 144,956.13
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Solution
The fourth proportional to 258,135.81, 356,231.57 and 144,956.13 is: 200,041.79
Step by Step Solution
- Step 1: Write the proportion equation
258,135.81 : 356,231.57 = 144,956.13 : x - Step 2: Convert to fraction form
258,135.81/356,231.57 = 144,956.13/x - Step 3: Cross multiply
258,135.81x = 356,231.57 × 144,956.13 - Step 4: Simplify right side
258,135.81x = 51,637,949,046.24 - Step 5: Solve for x
x = 51,637,949,046.24/258,135.81 - Step 6: Final answer
x = 200,041.79
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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.