Finding the Fourth Proportional to 213,769.13, 294,996.84 and 116,972.58
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Solution
The fourth proportional to 213,769.13, 294,996.84 and 116,972.58 is: 161,419.67
Step by Step Solution
- Step 1: Write the proportion equation
213,769.13 : 294,996.84 = 116,972.58 : x - Step 2: Convert to fraction form
213,769.13/294,996.84 = 116,972.58/x - Step 3: Cross multiply
213,769.13x = 294,996.84 × 116,972.58 - Step 4: Simplify right side
213,769.13x = 34,506,543,121.19 - Step 5: Solve for x
x = 34,506,543,121.19/213,769.13 - Step 6: Final answer
x = 161,419.67
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1.5x scale
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.