Finding the Fourth Proportional to 312,301.83, 430,976.76 and 169,061.99
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Solution
The fourth proportional to 312,301.83, 430,976.76 and 169,061.99 is: 233,305.66
Step by Step Solution
- Step 1: Write the proportion equation
312,301.83 : 430,976.76 = 169,061.99 : x - Step 2: Convert to fraction form
312,301.83/430,976.76 = 169,061.99/x - Step 3: Cross multiply
312,301.83x = 430,976.76 × 169,061.99 - Step 4: Simplify right side
312,301.83x = 72,861,785,900.49 - Step 5: Solve for x
x = 72,861,785,900.49/312,301.83 - Step 6: Final answer
x = 233,305.66
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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.