Finding the Fourth Proportional to 457,054.40, 685,469.76 and 190,817.12
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Solution
The fourth proportional to 457,054.40, 685,469.76 and 190,817.12 is: 286,178.99
Step by Step Solution
- Step 1: Write the proportion equation
457,054.40 : 685,469.76 = 190,817.12 : x - Step 2: Convert to fraction form
457,054.40/685,469.76 = 190,817.12/x - Step 3: Cross multiply
457,054.40x = 685,469.76 × 190,817.12 - Step 4: Simplify right side
457,054.40x = 130,799,365,450.29 - Step 5: Solve for x
x = 130,799,365,450.29/457,054.40 - Step 6: Final answer
x = 286,178.99
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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.