Finding the Fourth Proportional to 512,181.40, 768,272.10 and 344,219.80
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Solution
The fourth proportional to 512,181.40, 768,272.10 and 344,219.80 is: 516,329.70
Step by Step Solution
- Step 1: Write the proportion equation
512,181.40 : 768,272.10 = 344,219.80 : x - Step 2: Convert to fraction form
512,181.40/768,272.10 = 344,219.80/x - Step 3: Cross multiply
512,181.40x = 768,272.10 × 344,219.80 - Step 4: Simplify right side
512,181.40x = 264,454,468,607.58 - Step 5: Solve for x
x = 264,454,468,607.58/512,181.40 - Step 6: Final answer
x = 516,329.70
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1.5x scale
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.