Finding the Fourth Proportional to 312,466.97, 431,204.76 and 169,227.18
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Solution
The fourth proportional to 312,466.97, 431,204.76 and 169,227.18 is: 233,533.70
Step by Step Solution
- Step 1: Write the proportion equation
312,466.97 : 431,204.76 = 169,227.18 : x - Step 2: Convert to fraction form
312,466.97/431,204.76 = 169,227.18/x - Step 3: Cross multiply
312,466.97x = 431,204.76 × 169,227.18 - Step 4: Simplify right side
312,466.97x = 72,971,565,537.38 - Step 5: Solve for x
x = 72,971,565,537.38/312,466.97 - Step 6: Final answer
x = 233,533.70
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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.