Finding the Fourth Proportional to 423,658.18, 635,486.92 and 108,115.09
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Solution
The fourth proportional to 423,658.18, 635,486.92 and 108,115.09 is: 162,172.54
Step by Step Solution
- Step 1: Write the proportion equation
423,658.18 : 635,486.92 = 108,115.09 : x - Step 2: Convert to fraction form
423,658.18/635,486.92 = 108,115.09/x - Step 3: Cross multiply
423,658.18x = 635,486.92 × 108,115.09 - Step 4: Simplify right side
423,658.18x = 68,705,723,690.62 - Step 5: Solve for x
x = 68,705,723,690.62/423,658.18 - Step 6: Final answer
x = 162,172.54
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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.