Finding the Fourth Proportional to 312,305.94, 430,983.58 and 169,065.98
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Solution
The fourth proportional to 312,305.94, 430,983.58 and 169,065.98 is: 233,311.79
Step by Step Solution
- Step 1: Write the proportion equation
312,305.94 : 430,983.58 = 169,065.98 : x - Step 2: Convert to fraction form
312,305.94/430,983.58 = 169,065.98/x - Step 3: Cross multiply
312,305.94x = 430,983.58 × 169,065.98 - Step 4: Simplify right side
312,305.94x = 72,864,658,739.03 - Step 5: Solve for x
x = 72,864,658,739.03/312,305.94 - Step 6: Final answer
x = 233,311.79
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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.