Finding the Fourth Proportional to 253,739.93, 380,490.70 and 147,154.18
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Solution
The fourth proportional to 253,739.93, 380,490.70 and 147,154.18 is: 220,662.14
Step by Step Solution
- Step 1: Write the proportion equation
253,739.93 : 380,490.70 = 147,154.18 : x - Step 2: Convert to fraction form
253,739.93/380,490.70 = 147,154.18/x - Step 3: Cross multiply
253,739.93x = 380,490.70 × 147,154.18 - Step 4: Simplify right side
253,739.93x = 55,990,796,956.13 - Step 5: Solve for x
x = 55,990,796,956.13/253,739.93 - Step 6: Final answer
x = 220,662.14
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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.