Finding the Fourth Proportional to 228,702.07, 315,615.78 and 126,717.99
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Solution
The fourth proportional to 228,702.07, 315,615.78 and 126,717.99 is: 174,874.66
Step by Step Solution
- Step 1: Write the proportion equation
228,702.07 : 315,615.78 = 126,717.99 : x - Step 2: Convert to fraction form
228,702.07/315,615.78 = 126,717.99/x - Step 3: Cross multiply
228,702.07x = 315,615.78 × 126,717.99 - Step 4: Simplify right side
228,702.07x = 39,994,197,253.88 - Step 5: Solve for x
x = 39,994,197,253.88/228,702.07 - Step 6: Final answer
x = 174,874.66
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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.