Finding the Fourth Proportional to 243,112.65, 335,512.29 and 135,703.68
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Solution
The fourth proportional to 243,112.65, 335,512.29 and 135,703.68 is: 187,280.47
Step by Step Solution
- Step 1: Write the proportion equation
243,112.65 : 335,512.29 = 135,703.68 : x - Step 2: Convert to fraction form
243,112.65/335,512.29 = 135,703.68/x - Step 3: Cross multiply
243,112.65x = 335,512.29 × 135,703.68 - Step 4: Simplify right side
243,112.65x = 45,530,252,438.23 - Step 5: Solve for x
x = 45,530,252,438.23/243,112.65 - Step 6: Final answer
x = 187,280.47
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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.