Finding the Fourth Proportional to 217,089.80, 325,202.70 and 191,112.20
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Solution
The fourth proportional to 217,089.80, 325,202.70 and 191,112.20 is: 286,287.99
Step by Step Solution
- Step 1: Write the proportion equation
217,089.80 : 325,202.70 = 191,112.20 : x - Step 2: Convert to fraction form
217,089.80/325,202.70 = 191,112.20/x - Step 3: Cross multiply
217,089.80x = 325,202.70 × 191,112.20 - Step 4: Simplify right side
217,089.80x = 62,150,203,442.94 - Step 5: Solve for x
x = 62,150,203,442.94/217,089.80 - Step 6: Final answer
x = 286,287.99
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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.