Finding the Fourth Proportional to 490,915.08, 736,372.62 and 135,928.94
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Solution
The fourth proportional to 490,915.08, 736,372.62 and 135,928.94 is: 203,893.40
Step by Step Solution
- Step 1: Write the proportion equation
490,915.08 : 736,372.62 = 135,928.94 : x - Step 2: Convert to fraction form
490,915.08/736,372.62 = 135,928.94/x - Step 3: Cross multiply
490,915.08x = 736,372.62 × 135,928.94 - Step 4: Simplify right side
490,915.08x = 100,094,345,999.76 - Step 5: Solve for x
x = 100,094,345,999.76/490,915.08 - Step 6: Final answer
x = 203,893.40
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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.