Finding the Fourth Proportional to 231,459.29, 347,298.12 and 81,770.08
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Solution
The fourth proportional to 231,459.29, 347,298.12 and 81,770.08 is: 122,693.69
Step by Step Solution
- Step 1: Write the proportion equation
231,459.29 : 347,298.12 = 81,770.08 : x - Step 2: Convert to fraction form
231,459.29/347,298.12 = 81,770.08/x - Step 3: Cross multiply
231,459.29x = 347,298.12 × 81,770.08 - Step 4: Simplify right side
231,459.29x = 28,398,595,056.25 - Step 5: Solve for x
x = 28,398,595,056.25/231,459.29 - Step 6: Final answer
x = 122,693.69
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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.