Finding the Fourth Proportional to 411,469.20, 617,203.80 and 201,517.20
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Solution
The fourth proportional to 411,469.20, 617,203.80 and 201,517.20 is: 302,275.80
Step by Step Solution
- Step 1: Write the proportion equation
411,469.20 : 617,203.80 = 201,517.20 : x - Step 2: Convert to fraction form
411,469.20/617,203.80 = 201,517.20/x - Step 3: Cross multiply
411,469.20x = 617,203.80 × 201,517.20 - Step 4: Simplify right side
411,469.20x = 124,377,181,605.36 - Step 5: Solve for x
x = 124,377,181,605.36/411,469.20 - Step 6: Final answer
x = 302,275.80
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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.