Finding the Fourth Proportional to 421,134.71, 581,166.14 and 230,148.09
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Solution
The fourth proportional to 421,134.71, 581,166.14 and 230,148.09 is: 317,604.50
Step by Step Solution
- Step 1: Write the proportion equation
421,134.71 : 581,166.14 = 230,148.09 : x - Step 2: Convert to fraction form
421,134.71/581,166.14 = 230,148.09/x - Step 3: Cross multiply
421,134.71x = 581,166.14 × 230,148.09 - Step 4: Simplify right side
421,134.71x = 133,754,275,942.93 - Step 5: Solve for x
x = 133,754,275,942.93/421,134.71 - Step 6: Final answer
x = 317,604.50
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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.