Finding the Fourth Proportional to 284,493.30, 392,608.69 and 157,177.09
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Solution
The fourth proportional to 284,493.30, 392,608.69 and 157,177.09 is: 216,908.77
Step by Step Solution
- Step 1: Write the proportion equation
284,493.30 : 392,608.69 = 157,177.09 : x - Step 2: Convert to fraction form
284,493.30/392,608.69 = 157,177.09/x - Step 3: Cross multiply
284,493.30x = 392,608.69 × 157,177.09 - Step 4: Simplify right side
284,493.30x = 61,709,091,500.73 - Step 5: Solve for x
x = 61,709,091,500.73/284,493.30 - Step 6: Final answer
x = 216,908.77
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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.