Finding the Fourth Proportional to 312,133.48, 430,742.82 and 168,896.05
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Solution
The fourth proportional to 312,133.48, 430,742.82 and 168,896.05 is: 233,075.80
Step by Step Solution
- Step 1: Write the proportion equation
312,133.48 : 430,742.82 = 168,896.05 : x - Step 2: Convert to fraction form
312,133.48/430,742.82 = 168,896.05/x - Step 3: Cross multiply
312,133.48x = 430,742.82 × 168,896.05 - Step 4: Simplify right side
312,133.48x = 72,750,760,863.86 - Step 5: Solve for x
x = 72,750,760,863.86/312,133.48 - Step 6: Final answer
x = 233,075.80
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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.