Finding the Fourth Proportional to 246,121.05, 339,489.45 and 155,316.81
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Solution
The fourth proportional to 246,121.05, 339,489.45 and 155,316.81 is: 214,237.74
Step by Step Solution
- Step 1: Write the proportion equation
246,121.05 : 339,489.45 = 155,316.81 : x - Step 2: Convert to fraction form
246,121.05/339,489.45 = 155,316.81/x - Step 3: Cross multiply
246,121.05x = 339,489.45 × 155,316.81 - Step 4: Simplify right side
246,121.05x = 52,728,418,402.65 - Step 5: Solve for x
x = 52,728,418,402.65/246,121.05 - Step 6: Final answer
x = 214,237.74
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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.