Finding the Fourth Proportional to 490,861.28, 736,209.91 and 135,911.18
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Solution
The fourth proportional to 490,861.28, 736,209.91 and 135,911.18 is: 203,844.07
Step by Step Solution
- Step 1: Write the proportion equation
490,861.28 : 736,209.91 = 135,911.18 : x - Step 2: Convert to fraction form
490,861.28/736,209.91 = 135,911.18/x - Step 3: Cross multiply
490,861.28x = 736,209.91 × 135,911.18 - Step 4: Simplify right side
490,861.28x = 100,059,159,606.21 - Step 5: Solve for x
x = 100,059,159,606.21/490,861.28 - Step 6: Final answer
x = 203,844.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.