Finding the Fourth Proportional to 309,236.06, 463,416.68 and 131,564.18
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Solution
The fourth proportional to 309,236.06, 463,416.68 and 131,564.18 is: 197,160.17
Step by Step Solution
- Step 1: Write the proportion equation
309,236.06 : 463,416.68 = 131,564.18 : x - Step 2: Convert to fraction form
309,236.06/463,416.68 = 131,564.18/x - Step 3: Cross multiply
309,236.06x = 463,416.68 × 131,564.18 - Step 4: Simplify right side
309,236.06x = 60,969,032,527.62 - Step 5: Solve for x
x = 60,969,032,527.62/309,236.06 - Step 6: Final answer
x = 197,160.17
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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.