Finding the Fourth Proportional to 343,752.18, 515,642.25 and 163,745.07
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Solution
The fourth proportional to 343,752.18, 515,642.25 and 163,745.07 is: 245,624.26
Step by Step Solution
- Step 1: Write the proportion equation
343,752.18 : 515,642.25 = 163,745.07 : x - Step 2: Convert to fraction form
343,752.18/515,642.25 = 163,745.07/x - Step 3: Cross multiply
343,752.18x = 515,642.25 × 163,745.07 - Step 4: Simplify right side
343,752.18x = 84,433,876,321.21 - Step 5: Solve for x
x = 84,433,876,321.21/343,752.18 - Step 6: Final answer
x = 245,624.26
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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.