Finding the Fourth Proportional to 99,468.20, 149,202.30 and 40,305.80
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Solution
The fourth proportional to 99,468.20, 149,202.30 and 40,305.80 is: 60,458.70
Step by Step Solution
- Step 1: Write the proportion equation
99,468.20 : 149,202.30 = 40,305.80 : x - Step 2: Convert to fraction form
99,468.20/149,202.30 = 40,305.80/x - Step 3: Cross multiply
99,468.20x = 149,202.30 × 40,305.80 - Step 4: Simplify right side
99,468.20x = 6,013,718,063.34 - Step 5: Solve for x
x = 6,013,718,063.34/99,468.20 - Step 6: Final answer
x = 60,458.70
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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.