Finding the Fourth Proportional to 348,052.91, 522,129.42 and 131,991.21
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Solution
The fourth proportional to 348,052.91, 522,129.42 and 131,991.21 is: 198,005.80
Step by Step Solution
- Step 1: Write the proportion equation
348,052.91 : 522,129.42 = 131,991.21 : x - Step 2: Convert to fraction form
348,052.91/522,129.42 = 131,991.21/x - Step 3: Cross multiply
348,052.91x = 522,129.42 × 131,991.21 - Step 4: Simplify right side
348,052.91x = 68,916,493,922.40 - Step 5: Solve for x
x = 68,916,493,922.40/348,052.91 - Step 6: Final answer
x = 198,005.80
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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.