Finding the Fourth Proportional to 313,489.59, 470,252.13 and 100,276.21
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Solution
The fourth proportional to 313,489.59, 470,252.13 and 100,276.21 is: 150,419.99
Step by Step Solution
- Step 1: Write the proportion equation
313,489.59 : 470,252.13 = 100,276.21 : x - Step 2: Convert to fraction form
313,489.59/470,252.13 = 100,276.21/x - Step 3: Cross multiply
313,489.59x = 470,252.13 × 100,276.21 - Step 4: Simplify right side
313,489.59x = 47,155,101,340.83 - Step 5: Solve for x
x = 47,155,101,340.83/313,489.59 - Step 6: Final answer
x = 150,419.99
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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.