Finding the Fourth Proportional to 400,842.67, 553,163.02 and 219,557.63
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Solution
The fourth proportional to 400,842.67, 553,163.02 and 219,557.63 is: 302,989.60
Step by Step Solution
- Step 1: Write the proportion equation
400,842.67 : 553,163.02 = 219,557.63 : x - Step 2: Convert to fraction form
400,842.67/553,163.02 = 219,557.63/x - Step 3: Cross multiply
400,842.67x = 553,163.02 × 219,557.63 - Step 4: Simplify right side
400,842.67x = 121,451,161,674.84 - Step 5: Solve for x
x = 121,451,161,674.84/400,842.67 - Step 6: Final answer
x = 302,989.60
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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.