Finding the Fourth Proportional to 421,691.05, 581,940.21 and 230,707.63
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Solution
The fourth proportional to 421,691.05, 581,940.21 and 230,707.63 is: 318,380.12
Step by Step Solution
- Step 1: Write the proportion equation
421,691.05 : 581,940.21 = 230,707.63 : x - Step 2: Convert to fraction form
421,691.05/581,940.21 = 230,707.63/x - Step 3: Cross multiply
421,691.05x = 581,940.21 × 230,707.63 - Step 4: Simplify right side
421,691.05x = 134,258,046,650.80 - Step 5: Solve for x
x = 134,258,046,650.80/421,691.05 - Step 6: Final answer
x = 318,380.12
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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.