Finding the Fourth Proportional to 284,554.42, 392,684.97 and 157,228.90
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Solution
The fourth proportional to 284,554.42, 392,684.97 and 157,228.90 is: 216,975.81
Step by Step Solution
- Step 1: Write the proportion equation
284,554.42 : 392,684.97 = 157,228.90 : x - Step 2: Convert to fraction form
284,554.42/392,684.97 = 157,228.90/x - Step 3: Cross multiply
284,554.42x = 392,684.97 × 157,228.90 - Step 4: Simplify right side
284,554.42x = 61,741,425,879.63 - Step 5: Solve for x
x = 61,741,425,879.63/284,554.42 - Step 6: Final answer
x = 216,975.81
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1.5x scale
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.