Finding the Fourth Proportional to 221,689.74, 332,581.29 and 71,918.31
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Solution
The fourth proportional to 221,689.74, 332,581.29 and 71,918.31 is: 107,892.61
Step by Step Solution
- Step 1: Write the proportion equation
221,689.74 : 332,581.29 = 71,918.31 : x - Step 2: Convert to fraction form
221,689.74/332,581.29 = 71,918.31/x - Step 3: Cross multiply
221,689.74x = 332,581.29 × 71,918.31 - Step 4: Simplify right side
221,689.74x = 23,918,684,314.42 - Step 5: Solve for x
x = 23,918,684,314.42/221,689.74 - Step 6: Final answer
x = 107,892.61
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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.