Finding the Fourth Proportional to 432,742.44, 649,133.70 and 133,236.43
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Solution
The fourth proportional to 432,742.44, 649,133.70 and 133,236.43 is: 199,860.82
Step by Step Solution
- Step 1: Write the proportion equation
432,742.44 : 649,133.70 = 133,236.43 : x - Step 2: Convert to fraction form
432,742.44/649,133.70 = 133,236.43/x - Step 3: Cross multiply
432,742.44x = 649,133.70 × 133,236.43 - Step 4: Simplify right side
432,742.44x = 86,488,256,780.69 - Step 5: Solve for x
x = 86,488,256,780.69/432,742.44 - Step 6: Final answer
x = 199,860.82
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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.