Finding the Fourth Proportional to 316,288.44, 436,658.49 and 209,169.18
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Solution
The fourth proportional to 316,288.44, 436,658.49 and 209,169.18 is: 288,772.80
Step by Step Solution
- Step 1: Write the proportion equation
316,288.44 : 436,658.49 = 209,169.18 : x - Step 2: Convert to fraction form
316,288.44/436,658.49 = 209,169.18/x - Step 3: Cross multiply
316,288.44x = 436,658.49 × 209,169.18 - Step 4: Simplify right side
316,288.44x = 91,335,498,293.34 - Step 5: Solve for x
x = 91,335,498,293.34/316,288.44 - Step 6: Final answer
x = 288,772.80
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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.