Finding the Fourth Proportional to 153,769.76, 230,576.88 and 78,873.92
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Solution
The fourth proportional to 153,769.76, 230,576.88 and 78,873.92 is: 118,270.99
Step by Step Solution
- Step 1: Write the proportion equation
153,769.76 : 230,576.88 = 78,873.92 : x - Step 2: Convert to fraction form
153,769.76/230,576.88 = 78,873.92/x - Step 3: Cross multiply
153,769.76x = 230,576.88 × 78,873.92 - Step 4: Simplify right side
153,769.76x = 18,186,502,386.97 - Step 5: Solve for x
x = 18,186,502,386.97/153,769.76 - Step 6: Final answer
x = 118,270.99
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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.