Finding the Fourth Proportional to 306,518.19, 423,053.69 and 202,969.77
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Solution
The fourth proportional to 306,518.19, 423,053.69 and 202,969.77 is: 280,137.07
Step by Step Solution
- Step 1: Write the proportion equation
306,518.19 : 423,053.69 = 202,969.77 : x - Step 2: Convert to fraction form
306,518.19/423,053.69 = 202,969.77/x - Step 3: Cross multiply
306,518.19x = 423,053.69 × 202,969.77 - Step 4: Simplify right side
306,518.19x = 85,867,109,142.10 - Step 5: Solve for x
x = 85,867,109,142.10/306,518.19 - Step 6: Final answer
x = 280,137.07
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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.