Finding the Fourth Proportional to 220,911.84, 331,328.88 and 71,146.08
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Solution
The fourth proportional to 220,911.84, 331,328.88 and 71,146.08 is: 106,706.60
Step by Step Solution
- Step 1: Write the proportion equation
220,911.84 : 331,328.88 = 71,146.08 : x - Step 2: Convert to fraction form
220,911.84/331,328.88 = 71,146.08/x - Step 3: Cross multiply
220,911.84x = 331,328.88 × 71,146.08 - Step 4: Simplify right side
220,911.84x = 23,572,751,002.79 - Step 5: Solve for x
x = 23,572,751,002.79/220,911.84 - Step 6: Final answer
x = 106,706.60
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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.