Finding the Fourth Proportional to 490,819.88, 736,246.26 and 135,804.20
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Solution
The fourth proportional to 490,819.88, 736,246.26 and 135,804.20 is: 203,710.85
Step by Step Solution
- Step 1: Write the proportion equation
490,819.88 : 736,246.26 = 135,804.20 : x - Step 2: Convert to fraction form
490,819.88/736,246.26 = 135,804.20/x - Step 3: Cross multiply
490,819.88x = 736,246.26 × 135,804.20 - Step 4: Simplify right side
490,819.88x = 99,985,334,342.29 - Step 5: Solve for x
x = 99,985,334,342.29/490,819.88 - Step 6: Final answer
x = 203,710.85
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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.