Finding the Fourth Proportional to 427,397.22, 640,908.81 and 202,822.02
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Solution
The fourth proportional to 427,397.22, 640,908.81 and 202,822.02 is: 304,144.28
Step by Step Solution
- Step 1: Write the proportion equation
427,397.22 : 640,908.81 = 202,822.02 : x - Step 2: Convert to fraction form
427,397.22/640,908.81 = 202,822.02/x - Step 3: Cross multiply
427,397.22x = 640,908.81 × 202,822.02 - Step 4: Simplify right side
427,397.22x = 129,990,419,480.00 - Step 5: Solve for x
x = 129,990,419,480.00/427,397.22 - Step 6: Final answer
x = 304,144.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.