Finding the Fourth Proportional to 306,821.97, 460,212.71 and 147,012.21
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Solution
The fourth proportional to 306,821.97, 460,212.71 and 147,012.21 is: 220,508.61
Step by Step Solution
- Step 1: Write the proportion equation
306,821.97 : 460,212.71 = 147,012.21 : x - Step 2: Convert to fraction form
306,821.97/460,212.71 = 147,012.21/x - Step 3: Cross multiply
306,821.97x = 460,212.71 × 147,012.21 - Step 4: Simplify right side
306,821.97x = 67,656,886,832.13 - Step 5: Solve for x
x = 67,656,886,832.13/306,821.97 - Step 6: Final answer
x = 220,508.61
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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.