Finding the Fourth Proportional to 285,115.60, 393,420.61 and 170,369.99
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Solution
The fourth proportional to 285,115.60, 393,420.61 and 170,369.99 is: 235,087.33
Step by Step Solution
- Step 1: Write the proportion equation
285,115.60 : 393,420.61 = 170,369.99 : x - Step 2: Convert to fraction form
285,115.60/393,420.61 = 170,369.99/x - Step 3: Cross multiply
285,115.60x = 393,420.61 × 170,369.99 - Step 4: Simplify right side
285,115.60x = 67,027,065,391.49 - Step 5: Solve for x
x = 67,027,065,391.49/285,115.60 - Step 6: Final answer
x = 235,087.33
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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.