Finding the Fourth Proportional to 392,896.95, 542,199.96 and 229,563.05
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Solution
The fourth proportional to 392,896.95, 542,199.96 and 229,563.05 is: 316,798.27
Step by Step Solution
- Step 1: Write the proportion equation
392,896.95 : 542,199.96 = 229,563.05 : x - Step 2: Convert to fraction form
392,896.95/542,199.96 = 229,563.05/x - Step 3: Cross multiply
392,896.95x = 542,199.96 × 229,563.05 - Step 4: Simplify right side
392,896.95x = 124,469,072,668.66 - Step 5: Solve for x
x = 124,469,072,668.66/392,896.95 - Step 6: Final answer
x = 316,798.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.