Finding the Fourth Proportional to 209,763.12, 314,523.18 and 143,283.59
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Solution
The fourth proportional to 209,763.12, 314,523.18 and 143,283.59 is: 214,842.38
Step by Step Solution
- Step 1: Write the proportion equation
209,763.12 : 314,523.18 = 143,283.59 : x - Step 2: Convert to fraction form
209,763.12/314,523.18 = 143,283.59/x - Step 3: Cross multiply
209,763.12x = 314,523.18 × 143,283.59 - Step 4: Simplify right side
209,763.12x = 45,066,008,079.58 - Step 5: Solve for x
x = 45,066,008,079.58/209,763.12 - Step 6: Final answer
x = 214,842.38
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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.