Finding the Fourth Proportional to 284,575.14, 392,721.62 and 157,258.94
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Solution
The fourth proportional to 284,575.14, 392,721.62 and 157,258.94 is: 217,021.72
Step by Step Solution
- Step 1: Write the proportion equation
284,575.14 : 392,721.62 = 157,258.94 : x - Step 2: Convert to fraction form
284,575.14/392,721.62 = 157,258.94/x - Step 3: Cross multiply
284,575.14x = 392,721.62 × 157,258.94 - Step 4: Simplify right side
284,575.14x = 61,758,985,676.28 - Step 5: Solve for x
x = 61,758,985,676.28/284,575.14 - Step 6: Final answer
x = 217,021.72
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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.