Finding the Fourth Proportional to 252,079.40, 378,119.10 and 243,525.80
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Solution
The fourth proportional to 252,079.40, 378,119.10 and 243,525.80 is: 365,288.70
Step by Step Solution
- Step 1: Write the proportion equation
252,079.40 : 378,119.10 = 243,525.80 : x - Step 2: Convert to fraction form
252,079.40/378,119.10 = 243,525.80/x - Step 3: Cross multiply
252,079.40x = 378,119.10 × 243,525.80 - Step 4: Simplify right side
252,079.40x = 92,081,756,322.78 - Step 5: Solve for x
x = 92,081,756,322.78/252,079.40 - Step 6: Final answer
x = 365,288.70
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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.