Finding the Fourth Proportional to 153,754.57, 230,640.05 and 145,340.09
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Solution
The fourth proportional to 153,754.57, 230,640.05 and 145,340.09 is: 218,017.88
Step by Step Solution
- Step 1: Write the proportion equation
153,754.57 : 230,640.05 = 145,340.09 : x - Step 2: Convert to fraction form
153,754.57/230,640.05 = 145,340.09/x - Step 3: Cross multiply
153,754.57x = 230,640.05 × 145,340.09 - Step 4: Simplify right side
153,754.57x = 33,521,245,624.60 - Step 5: Solve for x
x = 33,521,245,624.60/153,754.57 - Step 6: Final answer
x = 218,017.88
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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.