Finding the Fourth Proportional to 490,785.99, 736,188.21 and 153,819.18
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Solution
The fourth proportional to 490,785.99, 736,188.21 and 153,819.18 is: 230,731.66
Step by Step Solution
- Step 1: Write the proportion equation
490,785.99 : 736,188.21 = 153,819.18 : x - Step 2: Convert to fraction form
490,785.99/736,188.21 = 153,819.18/x - Step 3: Cross multiply
490,785.99x = 736,188.21 × 153,819.18 - Step 4: Simplify right side
490,785.99x = 113,239,866,787.87 - Step 5: Solve for x
x = 113,239,866,787.87/490,785.99 - Step 6: Final answer
x = 230,731.66
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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.