Finding the Fourth Proportional to 242,919.63, 335,229.67 and 135,496.62
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Solution
The fourth proportional to 242,919.63, 335,229.67 and 135,496.62 is: 186,985.66
Step by Step Solution
- Step 1: Write the proportion equation
242,919.63 : 335,229.67 = 135,496.62 : x - Step 2: Convert to fraction form
242,919.63/335,229.67 = 135,496.62/x - Step 3: Cross multiply
242,919.63x = 335,229.67 × 135,496.62 - Step 4: Simplify right side
242,919.63x = 45,422,487,378.09 - Step 5: Solve for x
x = 45,422,487,378.09/242,919.63 - Step 6: Final answer
x = 186,985.66
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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.