Finding the Fourth Proportional to 313,872.99, 433,139.63 and 170,636.61
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Solution
The fourth proportional to 313,872.99, 433,139.63 and 170,636.61 is: 235,475.75
Step by Step Solution
- Step 1: Write the proportion equation
313,872.99 : 433,139.63 = 170,636.61 : x - Step 2: Convert to fraction form
313,872.99/433,139.63 = 170,636.61/x - Step 3: Cross multiply
313,872.99x = 433,139.63 × 170,636.61 - Step 4: Simplify right side
313,872.99x = 73,909,477,266.67 - Step 5: Solve for x
x = 73,909,477,266.67/313,872.99 - Step 6: Final answer
x = 235,475.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.