Finding the Fourth Proportional to 454,721.38, 682,134.75 and 151,142.68
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Solution
The fourth proportional to 454,721.38, 682,134.75 and 151,142.68 is: 226,731.53
Step by Step Solution
- Step 1: Write the proportion equation
454,721.38 : 682,134.75 = 151,142.68 : x - Step 2: Convert to fraction form
454,721.38/682,134.75 = 151,142.68/x - Step 3: Cross multiply
454,721.38x = 682,134.75 × 151,142.68 - Step 4: Simplify right side
454,721.38x = 103,099,674,236.13 - Step 5: Solve for x
x = 103,099,674,236.13/454,721.38 - Step 6: Final answer
x = 226,731.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.