Finding the Fourth Proportional to 193,272.12, 266,715.08 and 107,244.18
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Solution
The fourth proportional to 193,272.12, 266,715.08 and 107,244.18 is: 147,996.72
Step by Step Solution
- Step 1: Write the proportion equation
193,272.12 : 266,715.08 = 107,244.18 : x - Step 2: Convert to fraction form
193,272.12/266,715.08 = 107,244.18/x - Step 3: Cross multiply
193,272.12x = 266,715.08 × 107,244.18 - Step 4: Simplify right side
193,272.12x = 28,603,639,512.01 - Step 5: Solve for x
x = 28,603,639,512.01/193,272.12 - Step 6: Final answer
x = 147,996.72
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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.