Finding the Fourth Proportional to 312,564.96, 431,341.68 and 169,324.88
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Solution
The fourth proportional to 312,564.96, 431,341.68 and 169,324.88 is: 233,669.44
Step by Step Solution
- Step 1: Write the proportion equation
312,564.96 : 431,341.68 = 169,324.88 : x - Step 2: Convert to fraction form
312,564.96/431,341.68 = 169,324.88/x - Step 3: Cross multiply
312,564.96x = 431,341.68 × 169,324.88 - Step 4: Simplify right side
312,564.96x = 73,036,878,205.00 - Step 5: Solve for x
x = 73,036,878,205.00/312,564.96 - Step 6: Final answer
x = 233,669.44
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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.