Finding the Fourth Proportional to 221,041.30, 331,367.55 and 132,330.10
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Solution
The fourth proportional to 221,041.30, 331,367.55 and 132,330.10 is: 198,378.77
Step by Step Solution
- Step 1: Write the proportion equation
221,041.30 : 331,367.55 = 132,330.10 : x - Step 2: Convert to fraction form
221,041.30/331,367.55 = 132,330.10/x - Step 3: Cross multiply
221,041.30x = 331,367.55 × 132,330.10 - Step 4: Simplify right side
221,041.30x = 43,849,901,028.26 - Step 5: Solve for x
x = 43,849,901,028.26/221,041.30 - Step 6: Final answer
x = 198,378.77
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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.