Finding the Fourth Proportional to 262,624.19, 393,991.64 and 85,117.37
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Solution
The fourth proportional to 262,624.19, 393,991.64 and 85,117.37 is: 127,693.99
Step by Step Solution
- Step 1: Write the proportion equation
262,624.19 : 393,991.64 = 85,117.37 : x - Step 2: Convert to fraction form
262,624.19/393,991.64 = 85,117.37/x - Step 3: Cross multiply
262,624.19x = 393,991.64 × 85,117.37 - Step 4: Simplify right side
262,624.19x = 33,535,529,803.24 - Step 5: Solve for x
x = 33,535,529,803.24/262,624.19 - Step 6: Final answer
x = 127,693.99
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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.