Finding the Fourth Proportional to 312,186.24, 430,816.98 and 168,946.26
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Solution
The fourth proportional to 312,186.24, 430,816.98 and 168,946.26 is: 233,145.82
Step by Step Solution
- Step 1: Write the proportion equation
312,186.24 : 430,816.98 = 168,946.26 : x - Step 2: Convert to fraction form
312,186.24/430,816.98 = 168,946.26/x - Step 3: Cross multiply
312,186.24x = 430,816.98 × 168,946.26 - Step 4: Simplify right side
312,186.24x = 72,784,917,515.49 - Step 5: Solve for x
x = 72,784,917,515.49/312,186.24 - Step 6: Final answer
x = 233,145.82
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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.