Finding the Fourth Proportional to 311,297.80, 466,946.70 and 271,931.80
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Solution
The fourth proportional to 311,297.80, 466,946.70 and 271,931.80 is: 407,897.70
Step by Step Solution
- Step 1: Write the proportion equation
311,297.80 : 466,946.70 = 271,931.80 : x - Step 2: Convert to fraction form
311,297.80/466,946.70 = 271,931.80/x - Step 3: Cross multiply
311,297.80x = 466,946.70 × 271,931.80 - Step 4: Simplify right side
311,297.80x = 126,977,656,635.06 - Step 5: Solve for x
x = 126,977,656,635.06/311,297.80 - Step 6: Final answer
x = 407,897.70
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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.