Finding the Fourth Proportional to 231,457.29, 347,295.12 and 81,768.08
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Solution
The fourth proportional to 231,457.29, 347,295.12 and 81,768.08 is: 122,690.69
Step by Step Solution
- Step 1: Write the proportion equation
231,457.29 : 347,295.12 = 81,768.08 : x - Step 2: Convert to fraction form
231,457.29/347,295.12 = 81,768.08/x - Step 3: Cross multiply
231,457.29x = 347,295.12 × 81,768.08 - Step 4: Simplify right side
231,457.29x = 28,397,655,155.77 - Step 5: Solve for x
x = 28,397,655,155.77/231,457.29 - Step 6: Final answer
x = 122,690.69
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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.