Finding the Fourth Proportional to 411,489.20, 617,233.80 and 201,537.20
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Solution
The fourth proportional to 411,489.20, 617,233.80 and 201,537.20 is: 302,305.80
Step by Step Solution
- Step 1: Write the proportion equation
411,489.20 : 617,233.80 = 201,537.20 : x - Step 2: Convert to fraction form
411,489.20/617,233.80 = 201,537.20/x - Step 3: Cross multiply
411,489.20x = 617,233.80 × 201,537.20 - Step 4: Simplify right side
411,489.20x = 124,395,571,797.36 - Step 5: Solve for x
x = 124,395,571,797.36/411,489.20 - Step 6: Final answer
x = 302,305.80
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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.