Finding the Fourth Proportional to 490,422.08, 735,642.36 and 135,445.52
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Solution
The fourth proportional to 490,422.08, 735,642.36 and 135,445.52 is: 203,170.83
Step by Step Solution
- Step 1: Write the proportion equation
490,422.08 : 735,642.36 = 135,445.52 : x - Step 2: Convert to fraction form
490,422.08/735,642.36 = 135,445.52/x - Step 3: Cross multiply
490,422.08x = 735,642.36 × 135,445.52 - Step 4: Simplify right side
490,422.08x = 99,639,458,306.02 - Step 5: Solve for x
x = 99,639,458,306.02/490,422.08 - Step 6: Final answer
x = 203,170.83
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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.