Finding the Fourth Proportional to 341,405.40, 512,108.10 and 307,579.80
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Solution
The fourth proportional to 341,405.40, 512,108.10 and 307,579.80 is: 461,369.70
Step by Step Solution
- Step 1: Write the proportion equation
341,405.40 : 512,108.10 = 307,579.80 : x - Step 2: Convert to fraction form
341,405.40/512,108.10 = 307,579.80/x - Step 3: Cross multiply
341,405.40x = 512,108.10 × 307,579.80 - Step 4: Simplify right side
341,405.40x = 157,514,106,976.38 - Step 5: Solve for x
x = 157,514,106,976.38/341,405.40 - Step 6: Final answer
x = 461,369.70
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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.