Finding the Fourth Proportional to 312,130.36, 430,736.79 and 168,887.26
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Solution
The fourth proportional to 312,130.36, 430,736.79 and 168,887.26 is: 233,062.74
Step by Step Solution
- Step 1: Write the proportion equation
312,130.36 : 430,736.79 = 168,887.26 : x - Step 2: Convert to fraction form
312,130.36/430,736.79 = 168,887.26/x - Step 3: Cross multiply
312,130.36x = 430,736.79 × 168,887.26 - Step 4: Simplify right side
312,130.36x = 72,745,956,244.30 - Step 5: Solve for x
x = 72,745,956,244.30/312,130.36 - Step 6: Final answer
x = 233,062.74
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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.