Finding the Fourth Proportional to 217,288.80, 325,738.80 and 84,124.80
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Solution
The fourth proportional to 217,288.80, 325,738.80 and 84,124.80 is: 126,111.94
Step by Step Solution
- Step 1: Write the proportion equation
217,288.80 : 325,738.80 = 84,124.80 : x - Step 2: Convert to fraction form
217,288.80/325,738.80 = 84,124.80/x - Step 3: Cross multiply
217,288.80x = 325,738.80 × 84,124.80 - Step 4: Simplify right side
217,288.80x = 27,402,711,402.24 - Step 5: Solve for x
x = 27,402,711,402.24/217,288.80 - Step 6: Final answer
x = 126,111.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.