Finding the Fourth Proportional to 258,986.62, 357,604.23 and 202,558.78
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Solution
The fourth proportional to 258,986.62, 357,604.23 and 202,558.78 is: 279,689.65
Step by Step Solution
- Step 1: Write the proportion equation
258,986.62 : 357,604.23 = 202,558.78 : x - Step 2: Convert to fraction form
258,986.62/357,604.23 = 202,558.78/x - Step 3: Cross multiply
258,986.62x = 357,604.23 × 202,558.78 - Step 4: Simplify right side
258,986.62x = 72,435,876,551.64 - Step 5: Solve for x
x = 72,435,876,551.64/258,986.62 - Step 6: Final answer
x = 279,689.65
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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.