Finding the Fourth Proportional to 343,457.40, 515,186.10 and 306,715.80
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Solution
The fourth proportional to 343,457.40, 515,186.10 and 306,715.80 is: 460,073.70
Step by Step Solution
- Step 1: Write the proportion equation
343,457.40 : 515,186.10 = 306,715.80 : x - Step 2: Convert to fraction form
343,457.40/515,186.10 = 306,715.80/x - Step 3: Cross multiply
343,457.40x = 515,186.10 × 306,715.80 - Step 4: Simplify right side
343,457.40x = 158,015,716,810.38 - Step 5: Solve for x
x = 158,015,716,810.38/343,457.40 - Step 6: Final answer
x = 460,073.70
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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.