Finding the Fourth Proportional to 321,385.66, 482,009.29 and 131,659.99
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Solution
The fourth proportional to 321,385.66, 482,009.29 and 131,659.99 is: 197,461.63
Step by Step Solution
- Step 1: Write the proportion equation
321,385.66 : 482,009.29 = 131,659.99 : x - Step 2: Convert to fraction form
321,385.66/482,009.29 = 131,659.99/x - Step 3: Cross multiply
321,385.66x = 482,009.29 × 131,659.99 - Step 4: Simplify right side
321,385.66x = 63,461,336,767.13 - Step 5: Solve for x
x = 63,461,336,767.13/321,385.66 - Step 6: Final answer
x = 197,461.63
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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.