Finding the Fourth Proportional to 393,921.61, 590,959.99 and 141,134.48
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Solution
The fourth proportional to 393,921.61, 590,959.99 and 141,134.48 is: 211,729.52
Step by Step Solution
- Step 1: Write the proportion equation
393,921.61 : 590,959.99 = 141,134.48 : x - Step 2: Convert to fraction form
393,921.61/590,959.99 = 141,134.48/x - Step 3: Cross multiply
393,921.61x = 590,959.99 × 141,134.48 - Step 4: Simplify right side
393,921.61x = 83,404,832,857.44 - Step 5: Solve for x
x = 83,404,832,857.44/393,921.61 - Step 6: Final answer
x = 211,729.52
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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.