Finding the Fourth Proportional to 192,911.20, 266,207.76 and 106,865.44
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Solution
The fourth proportional to 192,911.20, 266,207.76 and 106,865.44 is: 147,468.94
Step by Step Solution
- Step 1: Write the proportion equation
192,911.20 : 266,207.76 = 106,865.44 : x - Step 2: Convert to fraction form
192,911.20/266,207.76 = 106,865.44/x - Step 3: Cross multiply
192,911.20x = 266,207.76 × 106,865.44 - Step 4: Simplify right side
192,911.20x = 28,448,409,403.81 - Step 5: Solve for x
x = 28,448,409,403.81/192,911.20 - Step 6: Final answer
x = 147,468.94
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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.