Finding the Fourth Proportional to 334,720.70, 502,080.84 and 85,402.70
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Solution
The fourth proportional to 334,720.70, 502,080.84 and 85,402.70 is: 128,103.99
Step by Step Solution
- Step 1: Write the proportion equation
334,720.70 : 502,080.84 = 85,402.70 : x - Step 2: Convert to fraction form
334,720.70/502,080.84 = 85,402.70/x - Step 3: Cross multiply
334,720.70x = 502,080.84 × 85,402.70 - Step 4: Simplify right side
334,720.70x = 42,879,056,843.86 - Step 5: Solve for x
x = 42,879,056,843.86/334,720.70 - Step 6: Final answer
x = 128,103.99
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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.