Finding the Fourth Proportional to 432,742.69, 649,134.08 and 133,236.68
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Solution
The fourth proportional to 432,742.69, 649,134.08 and 133,236.68 is: 199,861.19
Step by Step Solution
- Step 1: Write the proportion equation
432,742.69 : 649,134.08 = 133,236.68 : x - Step 2: Convert to fraction form
432,742.69/649,134.08 = 133,236.68/x - Step 3: Cross multiply
432,742.69x = 649,134.08 × 133,236.68 - Step 4: Simplify right side
432,742.69x = 86,488,469,027.87 - Step 5: Solve for x
x = 86,488,469,027.87/432,742.69 - Step 6: Final answer
x = 199,861.19
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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.