Finding the Fourth Proportional to 756,142.35, 1,134,213.55 and 223,621.91
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Solution
The fourth proportional to 756,142.35, 1,134,213.55 and 223,621.91 is: 335,432.88
Step by Step Solution
- Step 1: Write the proportion equation
756,142.35 : 1,134,213.55 = 223,621.91 : x - Step 2: Convert to fraction form
756,142.35/1,134,213.55 = 223,621.91/x - Step 3: Cross multiply
756,142.35x = 1,134,213.55 × 223,621.91 - Step 4: Simplify right side
756,142.35x = 253,635,002,675.36 - Step 5: Solve for x
x = 253,635,002,675.36/756,142.35 - Step 6: Final answer
x = 335,432.88
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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.