Finding the Fourth Proportional to 242,931.82, 335,246.42 and 135,499.09
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Solution
The fourth proportional to 242,931.82, 335,246.42 and 135,499.09 is: 186,989.02
Step by Step Solution
- Step 1: Write the proportion equation
242,931.82 : 335,246.42 = 135,499.09 : x - Step 2: Convert to fraction form
242,931.82/335,246.42 = 135,499.09/x - Step 3: Cross multiply
242,931.82x = 335,246.42 × 135,499.09 - Step 4: Simplify right side
242,931.82x = 45,425,582,482.03 - Step 5: Solve for x
x = 45,425,582,482.03/242,931.82 - Step 6: Final answer
x = 186,989.02
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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.