Finding the Fourth Proportional to 253,747.50, 350,013.18 and 163,221.49
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Solution
The fourth proportional to 253,747.50, 350,013.18 and 163,221.49 is: 225,143.79
Step by Step Solution
- Step 1: Write the proportion equation
253,747.50 : 350,013.18 = 163,221.49 : x - Step 2: Convert to fraction form
253,747.50/350,013.18 = 163,221.49/x - Step 3: Cross multiply
253,747.50x = 350,013.18 × 163,221.49 - Step 4: Simplify right side
253,747.50x = 57,129,672,759.24 - Step 5: Solve for x
x = 57,129,672,759.24/253,747.50 - Step 6: Final answer
x = 225,143.79
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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.