Finding the Fourth Proportional to 490,818.88, 736,244.76 and 135,803.20
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Solution
The fourth proportional to 490,818.88, 736,244.76 and 135,803.20 is: 203,709.35
Step by Step Solution
- Step 1: Write the proportion equation
490,818.88 : 736,244.76 = 135,803.20 : x - Step 2: Convert to fraction form
490,818.88/736,244.76 = 135,803.20/x - Step 3: Cross multiply
490,818.88x = 736,244.76 × 135,803.20 - Step 4: Simplify right side
490,818.88x = 99,984,394,391.23 - Step 5: Solve for x
x = 99,984,394,391.23/490,818.88 - Step 6: Final answer
x = 203,709.35
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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.