Finding the Fourth Proportional to 312,163.08, 430,786.18 and 168,923.10
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Solution
The fourth proportional to 312,163.08, 430,786.18 and 168,923.10 is: 233,114.49
Step by Step Solution
- Step 1: Write the proportion equation
312,163.08 : 430,786.18 = 168,923.10 : x - Step 2: Convert to fraction form
312,163.08/430,786.18 = 168,923.10/x - Step 3: Cross multiply
312,163.08x = 430,786.18 × 168,923.10 - Step 4: Simplify right side
312,163.08x = 72,769,736,962.76 - Step 5: Solve for x
x = 72,769,736,962.76/312,163.08 - Step 6: Final answer
x = 233,114.49
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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.