Finding the Fourth Proportional to 193,037.64, 289,476.27 and 74,640.75
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Solution
The fourth proportional to 193,037.64, 289,476.27 and 74,640.75 is: 111,930.12
Step by Step Solution
- Step 1: Write the proportion equation
193,037.64 : 289,476.27 = 74,640.75 : x - Step 2: Convert to fraction form
193,037.64/289,476.27 = 74,640.75/x - Step 3: Cross multiply
193,037.64x = 289,476.27 × 74,640.75 - Step 4: Simplify right side
193,037.64x = 21,606,725,900.00 - Step 5: Solve for x
x = 21,606,725,900.00/193,037.64 - Step 6: Final answer
x = 111,930.12
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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.