Finding the Fourth Proportional to 421,351.88, 581,465.79 and 230,366.84
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Solution
The fourth proportional to 421,351.88, 581,465.79 and 230,366.84 is: 317,906.34
Step by Step Solution
- Step 1: Write the proportion equation
421,351.88 : 581,465.79 = 230,366.84 : x - Step 2: Convert to fraction form
421,351.88/581,465.79 = 230,366.84/x - Step 3: Cross multiply
421,351.88x = 581,465.79 × 230,366.84 - Step 4: Simplify right side
421,351.88x = 133,950,433,703.08 - Step 5: Solve for x
x = 133,950,433,703.08/421,351.88 - Step 6: Final answer
x = 317,906.34
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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.