Finding the Fourth Proportional to 272,527.68, 408,857.16 and 85,539.12
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Solution
The fourth proportional to 272,527.68, 408,857.16 and 85,539.12 is: 128,329.28
Step by Step Solution
- Step 1: Write the proportion equation
272,527.68 : 408,857.16 = 85,539.12 : x - Step 2: Convert to fraction form
272,527.68/408,857.16 = 85,539.12/x - Step 3: Cross multiply
272,527.68x = 408,857.16 × 85,539.12 - Step 4: Simplify right side
272,527.68x = 34,973,281,672.10 - Step 5: Solve for x
x = 34,973,281,672.10/272,527.68 - Step 6: Final answer
x = 128,329.28
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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.