Finding the Fourth Proportional to 316,628.46, 436,952.34 and 173,385.99
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Solution
The fourth proportional to 316,628.46, 436,952.34 and 173,385.99 is: 239,275.44
Step by Step Solution
- Step 1: Write the proportion equation
316,628.46 : 436,952.34 = 173,385.99 : x - Step 2: Convert to fraction form
316,628.46/436,952.34 = 173,385.99/x - Step 3: Cross multiply
316,628.46x = 436,952.34 × 173,385.99 - Step 4: Simplify right side
316,628.46x = 75,761,414,053.72 - Step 5: Solve for x
x = 75,761,414,053.72/316,628.46 - Step 6: Final answer
x = 239,275.44
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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.