Finding the Fourth Proportional to 316,441.62, 436,690.44 and 173,210.94
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Solution
The fourth proportional to 316,441.62, 436,690.44 and 173,210.94 is: 239,031.65
Step by Step Solution
- Step 1: Write the proportion equation
316,441.62 : 436,690.44 = 173,210.94 : x - Step 2: Convert to fraction form
316,441.62/436,690.44 = 173,210.94/x - Step 3: Cross multiply
316,441.62x = 436,690.44 × 173,210.94 - Step 4: Simplify right side
316,441.62x = 75,639,561,601.41 - Step 5: Solve for x
x = 75,639,561,601.41/316,441.62 - Step 6: Final answer
x = 239,031.65
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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.