Finding the Fourth Proportional to 299,357.75, 449,108.39 and 99,679.95
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Solution
The fourth proportional to 299,357.75, 449,108.39 and 99,679.95 is: 149,543.82
Step by Step Solution
- Step 1: Write the proportion equation
299,357.75 : 449,108.39 = 99,679.95 : x - Step 2: Convert to fraction form
299,357.75/449,108.39 = 99,679.95/x - Step 3: Cross multiply
299,357.75x = 449,108.39 × 99,679.95 - Step 4: Simplify right side
299,357.75x = 44,767,102,108.98 - Step 5: Solve for x
x = 44,767,102,108.98/299,357.75 - Step 6: Final answer
x = 149,543.82
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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.