Finding the Fourth Proportional to 193,423.74, 266,910.57 and 107,387.70
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Solution
The fourth proportional to 193,423.74, 266,910.57 and 107,387.70 is: 148,187.15
Step by Step Solution
- Step 1: Write the proportion equation
193,423.74 : 266,910.57 = 107,387.70 : x - Step 2: Convert to fraction form
193,423.74/266,910.57 = 107,387.70/x - Step 3: Cross multiply
193,423.74x = 266,910.57 × 107,387.70 - Step 4: Simplify right side
193,423.74x = 28,662,912,217.99 - Step 5: Solve for x
x = 28,662,912,217.99/193,423.74 - Step 6: Final answer
x = 148,187.15
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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.