Finding the Fourth Proportional to 261,863.92, 392,968.08 and 143,618.26
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Solution
The fourth proportional to 261,863.92, 392,968.08 and 143,618.26 is: 215,521.83
Step by Step Solution
- Step 1: Write the proportion equation
261,863.92 : 392,968.08 = 143,618.26 : x - Step 2: Convert to fraction form
261,863.92/392,968.08 = 143,618.26/x - Step 3: Cross multiply
261,863.92x = 392,968.08 × 143,618.26 - Step 4: Simplify right side
261,863.92x = 56,437,391,885.14 - Step 5: Solve for x
x = 56,437,391,885.14/261,863.92 - Step 6: Final answer
x = 215,521.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.