Finding the Fourth Proportional to 268,769.27, 403,403.36 and 135,742.94
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Solution
The fourth proportional to 268,769.27, 403,403.36 and 135,742.94 is: 203,740.39
Step by Step Solution
- Step 1: Write the proportion equation
268,769.27 : 403,403.36 = 135,742.94 : x - Step 2: Convert to fraction form
268,769.27/403,403.36 = 135,742.94/x - Step 3: Cross multiply
268,769.27x = 403,403.36 × 135,742.94 - Step 4: Simplify right side
268,769.27x = 54,759,156,909.31 - Step 5: Solve for x
x = 54,759,156,909.31/268,769.27 - Step 6: Final answer
x = 203,740.39
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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.