Finding the Fourth Proportional to 256,748.99, 354,286.44 and 142,009.38
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Solution
The fourth proportional to 256,748.99, 354,286.44 and 142,009.38 is: 195,957.92
Step by Step Solution
- Step 1: Write the proportion equation
256,748.99 : 354,286.44 = 142,009.38 : x - Step 2: Convert to fraction form
256,748.99/354,286.44 = 142,009.38/x - Step 3: Cross multiply
256,748.99x = 354,286.44 × 142,009.38 - Step 4: Simplify right side
256,748.99x = 50,311,997,686.81 - Step 5: Solve for x
x = 50,311,997,686.81/256,748.99 - Step 6: Final answer
x = 195,957.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.