Finding the Fourth Proportional to 457,522.09, 631,229.16 and 276,165.12
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Solution
The fourth proportional to 457,522.09, 631,229.16 and 276,165.12 is: 381,016.52
Step by Step Solution
- Step 1: Write the proportion equation
457,522.09 : 631,229.16 = 276,165.12 : x - Step 2: Convert to fraction form
457,522.09/631,229.16 = 276,165.12/x - Step 3: Cross multiply
457,522.09x = 631,229.16 × 276,165.12 - Step 4: Simplify right side
457,522.09x = 174,323,476,718.90 - Step 5: Solve for x
x = 174,323,476,718.90/457,522.09 - Step 6: Final answer
x = 381,016.52
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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.