Finding the Fourth Proportional to 284,745.24, 392,939.10 and 157,403.52
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Solution
The fourth proportional to 284,745.24, 392,939.10 and 157,403.52 is: 217,211.70
Step by Step Solution
- Step 1: Write the proportion equation
284,745.24 : 392,939.10 = 157,403.52 : x - Step 2: Convert to fraction form
284,745.24/392,939.10 = 157,403.52/x - Step 3: Cross multiply
284,745.24x = 392,939.10 × 157,403.52 - Step 4: Simplify right side
284,745.24x = 61,849,997,485.63 - Step 5: Solve for x
x = 61,849,997,485.63/284,745.24 - Step 6: Final answer
x = 217,211.70
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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.