Finding the Fourth Proportional to 272,939.79, 409,353.21 and 73,212.69
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Solution
The fourth proportional to 272,939.79, 409,353.21 and 73,212.69 is: 109,803.89
Step by Step Solution
- Step 1: Write the proportion equation
272,939.79 : 409,353.21 = 73,212.69 : x - Step 2: Convert to fraction form
272,939.79/409,353.21 = 73,212.69/x - Step 3: Cross multiply
272,939.79x = 409,353.21 × 73,212.69 - Step 4: Simplify right side
272,939.79x = 29,969,849,664.23 - Step 5: Solve for x
x = 29,969,849,664.23/272,939.79 - Step 6: Final answer
x = 109,803.89
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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.