Finding the Fourth Proportional to 280,136.13, 420,207.84 and 93,147.63
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Solution
The fourth proportional to 280,136.13, 420,207.84 and 93,147.63 is: 139,722.66
Step by Step Solution
- Step 1: Write the proportion equation
280,136.13 : 420,207.84 = 93,147.63 : x - Step 2: Convert to fraction form
280,136.13/420,207.84 = 93,147.63/x - Step 3: Cross multiply
280,136.13x = 420,207.84 × 93,147.63 - Step 4: Simplify right side
280,136.13x = 39,141,364,403.42 - Step 5: Solve for x
x = 39,141,364,403.42/280,136.13 - Step 6: Final answer
x = 139,722.66
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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.