Finding the Fourth Proportional to 312,186.70, 430,817.70 and 168,946.84
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Solution
The fourth proportional to 312,186.70, 430,817.70 and 168,946.84 is: 233,146.67
Step by Step Solution
- Step 1: Write the proportion equation
312,186.70 : 430,817.70 = 168,946.84 : x - Step 2: Convert to fraction form
312,186.70/430,817.70 = 168,946.84/x - Step 3: Cross multiply
312,186.70x = 430,817.70 × 168,946.84 - Step 4: Simplify right side
312,186.70x = 72,785,289,031.07 - Step 5: Solve for x
x = 72,785,289,031.07/312,186.70 - Step 6: Final answer
x = 233,146.67
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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.