Finding the Fourth Proportional to 287,297.80, 430,946.70 and 147,329.80
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Solution
The fourth proportional to 287,297.80, 430,946.70 and 147,329.80 is: 220,994.70
Step by Step Solution
- Step 1: Write the proportion equation
287,297.80 : 430,946.70 = 147,329.80 : x - Step 2: Convert to fraction form
287,297.80/430,946.70 = 147,329.80/x - Step 3: Cross multiply
287,297.80x = 430,946.70 × 147,329.80 - Step 4: Simplify right side
287,297.80x = 63,491,291,121.66 - Step 5: Solve for x
x = 63,491,291,121.66/287,297.80 - Step 6: Final answer
x = 220,994.70
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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.