Finding the Fourth Proportional to 258,206.08, 356,286.72 and 145,022.08
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Solution
The fourth proportional to 258,206.08, 356,286.72 and 145,022.08 is: 200,109.31
Step by Step Solution
- Step 1: Write the proportion equation
258,206.08 : 356,286.72 = 145,022.08 : x - Step 2: Convert to fraction form
258,206.08/356,286.72 = 145,022.08/x - Step 3: Cross multiply
258,206.08x = 356,286.72 × 145,022.08 - Step 4: Simplify right side
258,206.08x = 51,669,441,210.78 - Step 5: Solve for x
x = 51,669,441,210.78/258,206.08 - Step 6: Final answer
x = 200,109.31
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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.