Finding the Fourth Proportional to 421,044.80, 631,609.70 and 136,723.46
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Solution
The fourth proportional to 421,044.80, 631,609.70 and 136,723.46 is: 205,098.99
Step by Step Solution
- Step 1: Write the proportion equation
421,044.80 : 631,609.70 = 136,723.46 : x - Step 2: Convert to fraction form
421,044.80/631,609.70 = 136,723.46/x - Step 3: Cross multiply
421,044.80x = 631,609.70 × 136,723.46 - Step 4: Simplify right side
421,044.80x = 86,355,863,553.56 - Step 5: Solve for x
x = 86,355,863,553.56/421,044.80 - Step 6: Final answer
x = 205,098.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.