Finding the Fourth Proportional to 316,634.20, 436,940.12 and 173,395.02
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Solution
The fourth proportional to 316,634.20, 436,940.12 and 173,395.02 is: 239,276.87
Step by Step Solution
- Step 1: Write the proportion equation
316,634.20 : 436,940.12 = 173,395.02 : x - Step 2: Convert to fraction form
316,634.20/436,940.12 = 173,395.02/x - Step 3: Cross multiply
316,634.20x = 436,940.12 × 173,395.02 - Step 4: Simplify right side
316,634.20x = 75,763,240,846.20 - Step 5: Solve for x
x = 75,763,240,846.20/316,634.20 - Step 6: Final answer
x = 239,276.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.