Finding the Fourth Proportional to 302,685.80, 454,028.70 and 288,907.70
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Solution
The fourth proportional to 302,685.80, 454,028.70 and 288,907.70 is: 433,361.55
Step by Step Solution
- Step 1: Write the proportion equation
302,685.80 : 454,028.70 = 288,907.70 : x - Step 2: Convert to fraction form
302,685.80/454,028.70 = 288,907.70/x - Step 3: Cross multiply
302,685.80x = 454,028.70 × 288,907.70 - Step 4: Simplify right side
302,685.80x = 131,172,387,450.99 - Step 5: Solve for x
x = 131,172,387,450.99/302,685.80 - Step 6: Final answer
x = 433,361.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.