Finding the Fourth Proportional to 272,575.13, 408,866.33 and 85,586.63
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Solution
The fourth proportional to 272,575.13, 408,866.33 and 85,586.63 is: 128,381.08
Step by Step Solution
- Step 1: Write the proportion equation
272,575.13 : 408,866.33 = 85,586.63 : x - Step 2: Convert to fraction form
272,575.13/408,866.33 = 85,586.63/x - Step 3: Cross multiply
272,575.13x = 408,866.33 × 85,586.63 - Step 4: Simplify right side
272,575.13x = 34,993,489,474.80 - Step 5: Solve for x
x = 34,993,489,474.80/272,575.13 - Step 6: Final answer
x = 128,381.08
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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.