Finding the Fourth Proportional to 307,431.99, 461,213.64 and 107,764.56
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Solution
The fourth proportional to 307,431.99, 461,213.64 and 107,764.56 is: 161,669.85
Step by Step Solution
- Step 1: Write the proportion equation
307,431.99 : 461,213.64 = 107,764.56 : x - Step 2: Convert to fraction form
307,431.99/461,213.64 = 107,764.56/x - Step 3: Cross multiply
307,431.99x = 461,213.64 × 107,764.56 - Step 4: Simplify right side
307,431.99x = 49,702,484,980.60 - Step 5: Solve for x
x = 49,702,484,980.60/307,431.99 - Step 6: Final answer
x = 161,669.85
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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.