Finding the Fourth Proportional to 405,715.76, 608,628.99 and 169,003.08
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Solution
The fourth proportional to 405,715.76, 608,628.99 and 169,003.08 is: 253,527.68
Step by Step Solution
- Step 1: Write the proportion equation
405,715.76 : 608,628.99 = 169,003.08 : x - Step 2: Convert to fraction form
405,715.76/608,628.99 = 169,003.08/x - Step 3: Cross multiply
405,715.76x = 608,628.99 × 169,003.08 - Step 4: Simplify right side
405,715.76x = 102,860,174,521.05 - Step 5: Solve for x
x = 102,860,174,521.05/405,715.76 - Step 6: Final answer
x = 253,527.68
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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.