Finding the Fourth Proportional to 151,508.81, 226,701.84 and 121,431.83
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Solution
The fourth proportional to 151,508.81, 226,701.84 and 121,431.83 is: 181,697.80
Step by Step Solution
- Step 1: Write the proportion equation
151,508.81 : 226,701.84 = 121,431.83 : x - Step 2: Convert to fraction form
151,508.81/226,701.84 = 121,431.83/x - Step 3: Cross multiply
151,508.81x = 226,701.84 × 121,431.83 - Step 4: Simplify right side
151,508.81x = 27,528,818,617.43 - Step 5: Solve for x
x = 27,528,818,617.43/151,508.81 - Step 6: Final answer
x = 181,697.80
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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.