Finding the Fourth Proportional to 153,790.20, 230,717.70 and 48,619.80
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Solution
The fourth proportional to 153,790.20, 230,717.70 and 48,619.80 is: 72,939.94
Step by Step Solution
- Step 1: Write the proportion equation
153,790.20 : 230,717.70 = 48,619.80 : x - Step 2: Convert to fraction form
153,790.20/230,717.70 = 48,619.80/x - Step 3: Cross multiply
153,790.20x = 230,717.70 × 48,619.80 - Step 4: Simplify right side
153,790.20x = 11,217,448,430.46 - Step 5: Solve for x
x = 11,217,448,430.46/153,790.20 - Step 6: Final answer
x = 72,939.94
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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.