Finding the Fourth Proportional to 324,102.20, 485,894.10 and 136,959.80
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Solution
The fourth proportional to 324,102.20, 485,894.10 and 136,959.80 is: 205,330.17
Step by Step Solution
- Step 1: Write the proportion equation
324,102.20 : 485,894.10 = 136,959.80 : x - Step 2: Convert to fraction form
324,102.20/485,894.10 = 136,959.80/x - Step 3: Cross multiply
324,102.20x = 485,894.10 × 136,959.80 - Step 4: Simplify right side
324,102.20x = 66,547,958,757.18 - Step 5: Solve for x
x = 66,547,958,757.18/324,102.20 - Step 6: Final answer
x = 205,330.17
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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.