Finding the Fourth Proportional to 490,168.40, 735,252.60 and 135,237.20
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Solution
The fourth proportional to 490,168.40, 735,252.60 and 135,237.20 is: 202,855.80
Step by Step Solution
- Step 1: Write the proportion equation
490,168.40 : 735,252.60 = 135,237.20 : x - Step 2: Convert to fraction form
490,168.40/735,252.60 = 135,237.20/x - Step 3: Cross multiply
490,168.40x = 735,252.60 × 135,237.20 - Step 4: Simplify right side
490,168.40x = 99,433,502,916.72 - Step 5: Solve for x
x = 99,433,502,916.72/490,168.40 - Step 6: Final answer
x = 202,855.80
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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.