Finding the Fourth Proportional to 279,786.05, 419,638.08 and 137,593.12
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Solution
The fourth proportional to 279,786.05, 419,638.08 and 137,593.12 is: 206,369.52
Step by Step Solution
- Step 1: Write the proportion equation
279,786.05 : 419,638.08 = 137,593.12 : x - Step 2: Convert to fraction form
279,786.05/419,638.08 = 137,593.12/x - Step 3: Cross multiply
279,786.05x = 419,638.08 × 137,593.12 - Step 4: Simplify right side
279,786.05x = 57,739,312,698.01 - Step 5: Solve for x
x = 57,739,312,698.01/279,786.05 - Step 6: Final answer
x = 206,369.52
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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.