Finding the Fourth Proportional to 307,943.70, 461,915.55 and 202,881.30
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Solution
The fourth proportional to 307,943.70, 461,915.55 and 202,881.30 is: 304,321.95
Step by Step Solution
- Step 1: Write the proportion equation
307,943.70 : 461,915.55 = 202,881.30 : x - Step 2: Convert to fraction form
307,943.70/461,915.55 = 202,881.30/x - Step 3: Cross multiply
307,943.70x = 461,915.55 × 202,881.30 - Step 4: Simplify right side
307,943.70x = 93,714,027,274.22 - Step 5: Solve for x
x = 93,714,027,274.22/307,943.70 - Step 6: Final answer
x = 304,321.95
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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.