Finding the Fourth Proportional to 256,717.14, 384,699.78 and 144,615.84
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Solution
The fourth proportional to 256,717.14, 384,699.78 and 144,615.84 is: 216,711.99
Step by Step Solution
- Step 1: Write the proportion equation
256,717.14 : 384,699.78 = 144,615.84 : x - Step 2: Convert to fraction form
256,717.14/384,699.78 = 144,615.84/x - Step 3: Cross multiply
256,717.14x = 384,699.78 × 144,615.84 - Step 4: Simplify right side
256,717.14x = 55,633,681,832.52 - Step 5: Solve for x
x = 55,633,681,832.52/256,717.14 - Step 6: Final answer
x = 216,711.99
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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.