Finding the Fourth Proportional to 306,137.16, 422,495.91 and 170,197.74
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Solution
The fourth proportional to 306,137.16, 422,495.91 and 170,197.74 is: 234,887.69
Step by Step Solution
- Step 1: Write the proportion equation
306,137.16 : 422,495.91 = 170,197.74 : x - Step 2: Convert to fraction form
306,137.16/422,495.91 = 170,197.74/x - Step 3: Cross multiply
306,137.16x = 422,495.91 × 170,197.74 - Step 4: Simplify right side
306,137.16x = 71,907,849,041.24 - Step 5: Solve for x
x = 71,907,849,041.24/306,137.16 - Step 6: Final answer
x = 234,887.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.