Finding the Fourth Proportional to 423,086.04, 634,183.26 and 138,702.44
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Solution
The fourth proportional to 423,086.04, 634,183.26 and 138,702.44 is: 207,907.50
Step by Step Solution
- Step 1: Write the proportion equation
423,086.04 : 634,183.26 = 138,702.44 : x - Step 2: Convert to fraction form
423,086.04/634,183.26 = 138,702.44/x - Step 3: Cross multiply
423,086.04x = 634,183.26 × 138,702.44 - Step 4: Simplify right side
423,086.04x = 87,962,762,398.24 - Step 5: Solve for x
x = 87,962,762,398.24/423,086.04 - Step 6: Final answer
x = 207,907.50
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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.