Finding the Fourth Proportional to 135,215.20, 202,822.80 and 41,720.80
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Solution
The fourth proportional to 135,215.20, 202,822.80 and 41,720.80 is: 62,581.20
Step by Step Solution
- Step 1: Write the proportion equation
135,215.20 : 202,822.80 = 41,720.80 : x - Step 2: Convert to fraction form
135,215.20/202,822.80 = 41,720.80/x - Step 3: Cross multiply
135,215.20x = 202,822.80 × 41,720.80 - Step 4: Simplify right side
135,215.20x = 8,461,929,474.24 - Step 5: Solve for x
x = 8,461,929,474.24/135,215.20 - Step 6: Final answer
x = 62,581.20
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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.