Finding the Fourth Proportional to 385,589.08, 578,408.12 and 119,327.23
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Solution
The fourth proportional to 385,589.08, 578,408.12 and 119,327.23 is: 178,998.43
Step by Step Solution
- Step 1: Write the proportion equation
385,589.08 : 578,408.12 = 119,327.23 : x - Step 2: Convert to fraction form
385,589.08/578,408.12 = 119,327.23/x - Step 3: Cross multiply
385,589.08x = 578,408.12 × 119,327.23 - Step 4: Simplify right side
385,589.08x = 69,019,838,769.11 - Step 5: Solve for x
x = 69,019,838,769.11/385,589.08 - Step 6: Final answer
x = 178,998.43
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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.