Finding the Fourth Proportional to 228,638.80, 315,517.48 and 126,663.95
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Solution
The fourth proportional to 228,638.80, 315,517.48 and 126,663.95 is: 174,794.00
Step by Step Solution
- Step 1: Write the proportion equation
228,638.80 : 315,517.48 = 126,663.95 : x - Step 2: Convert to fraction form
228,638.80/315,517.48 = 126,663.95/x - Step 3: Cross multiply
228,638.80x = 315,517.48 × 126,663.95 - Step 4: Simplify right side
228,638.80x = 39,964,690,782.98 - Step 5: Solve for x
x = 39,964,690,782.98/228,638.80 - Step 6: Final answer
x = 174,794.00
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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.