Finding the Fourth Proportional to 153,939.92, 230,918.84 and 43,140.56
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Solution
The fourth proportional to 153,939.92, 230,918.84 and 43,140.56 is: 64,713.35
Step by Step Solution
- Step 1: Write the proportion equation
153,939.92 : 230,918.84 = 43,140.56 : x - Step 2: Convert to fraction form
153,939.92/230,918.84 = 43,140.56/x - Step 3: Cross multiply
153,939.92x = 230,918.84 × 43,140.56 - Step 4: Simplify right side
153,939.92x = 9,961,968,072.15 - Step 5: Solve for x
x = 9,961,968,072.15/153,939.92 - Step 6: Final answer
x = 64,713.35
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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.