Finding the Fourth Proportional to 343,135.21, 514,767.53 and 129,966.94
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Solution
The fourth proportional to 343,135.21, 514,767.53 and 129,966.94 is: 194,974.92
Step by Step Solution
- Step 1: Write the proportion equation
343,135.21 : 514,767.53 = 129,966.94 : x - Step 2: Convert to fraction form
343,135.21/514,767.53 = 129,966.94/x - Step 3: Cross multiply
343,135.21x = 514,767.53 × 129,966.94 - Step 4: Simplify right side
343,135.21x = 66,902,760,685.46 - Step 5: Solve for x
x = 66,902,760,685.46/343,135.21 - Step 6: Final answer
x = 194,974.92
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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.