Finding the Fourth Proportional to 202,728.74, 304,142.70 and 142,874.00
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Solution
The fourth proportional to 202,728.74, 304,142.70 and 142,874.00 is: 214,345.95
Step by Step Solution
- Step 1: Write the proportion equation
202,728.74 : 304,142.70 = 142,874.00 : x - Step 2: Convert to fraction form
202,728.74/304,142.70 = 142,874.00/x - Step 3: Cross multiply
202,728.74x = 304,142.70 × 142,874.00 - Step 4: Simplify right side
202,728.74x = 43,454,085,415.93 - Step 5: Solve for x
x = 43,454,085,415.93/202,728.74 - Step 6: Final answer
x = 214,345.95
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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.