Finding the Fourth Proportional to 145,370.28, 218,190.35 and 74,343.68
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Solution
The fourth proportional to 145,370.28, 218,190.35 and 74,343.68 is: 111,584.52
Step by Step Solution
- Step 1: Write the proportion equation
145,370.28 : 218,190.35 = 74,343.68 : x - Step 2: Convert to fraction form
145,370.28/218,190.35 = 74,343.68/x - Step 3: Cross multiply
145,370.28x = 218,190.35 × 74,343.68 - Step 4: Simplify right side
145,370.28x = 16,221,072,654.40 - Step 5: Solve for x
x = 16,221,072,654.40/145,370.28 - Step 6: Final answer
x = 111,584.52
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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.