Finding the Fourth Proportional to 282,659.29, 423,936.65 and 128,748.98
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Solution
The fourth proportional to 282,659.29, 423,936.65 and 128,748.98 is: 193,099.66
Step by Step Solution
- Step 1: Write the proportion equation
282,659.29 : 423,936.65 = 128,748.98 : x - Step 2: Convert to fraction form
282,659.29/423,936.65 = 128,748.98/x - Step 3: Cross multiply
282,659.29x = 423,936.65 × 128,748.98 - Step 4: Simplify right side
282,659.29x = 54,581,412,653.83 - Step 5: Solve for x
x = 54,581,412,653.83/282,659.29 - Step 6: Final answer
x = 193,099.66
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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.