Finding the Fourth Proportional to 421,318.97, 631,849.93 and 221,530.97
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Solution
The fourth proportional to 421,318.97, 631,849.93 and 221,530.97 is: 332,228.87
Step by Step Solution
- Step 1: Write the proportion equation
421,318.97 : 631,849.93 = 221,530.97 : x - Step 2: Convert to fraction form
421,318.97/631,849.93 = 221,530.97/x - Step 3: Cross multiply
421,318.97x = 631,849.93 × 221,530.97 - Step 4: Simplify right side
421,318.97x = 139,974,324,174.26 - Step 5: Solve for x
x = 139,974,324,174.26/421,318.97 - Step 6: Final answer
x = 332,228.87
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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.