Finding the Fourth Proportional to 284,625.90, 392,779.26 and 157,303.62
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Solution
The fourth proportional to 284,625.90, 392,779.26 and 157,303.62 is: 217,076.52
Step by Step Solution
- Step 1: Write the proportion equation
284,625.90 : 392,779.26 = 157,303.62 : x - Step 2: Convert to fraction form
284,625.90/392,779.26 = 157,303.62/x - Step 3: Cross multiply
284,625.90x = 392,779.26 × 157,303.62 - Step 4: Simplify right side
284,625.90x = 61,785,599,458.92 - Step 5: Solve for x
x = 61,785,599,458.92/284,625.90 - Step 6: Final answer
x = 217,076.52
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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.