Finding the Fourth Proportional to 329,381.24, 493,721.87 and 129,674.12
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Solution
The fourth proportional to 329,381.24, 493,721.87 and 129,674.12 is: 194,373.39
Step by Step Solution
- Step 1: Write the proportion equation
329,381.24 : 493,721.87 = 129,674.12 : x - Step 2: Convert to fraction form
329,381.24/493,721.87 = 129,674.12/x - Step 3: Cross multiply
329,381.24x = 493,721.87 × 129,674.12 - Step 4: Simplify right side
329,381.24x = 64,022,945,900.02 - Step 5: Solve for x
x = 64,022,945,900.02/329,381.24 - Step 6: Final answer
x = 194,373.39
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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.