Finding the Fourth Proportional to 405,467.89, 608,137.99 and 135,593.96
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Solution
The fourth proportional to 405,467.89, 608,137.99 and 135,593.96 is: 203,369.58
Step by Step Solution
- Step 1: Write the proportion equation
405,467.89 : 608,137.99 = 135,593.96 : x - Step 2: Convert to fraction form
405,467.89/608,137.99 = 135,593.96/x - Step 3: Cross multiply
405,467.89x = 608,137.99 × 135,593.96 - Step 4: Simplify right side
405,467.89x = 82,459,834,910.87 - Step 5: Solve for x
x = 82,459,834,910.87/405,467.89 - Step 6: Final answer
x = 203,369.58
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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.