Finding the Fourth Proportional to 313,868.09, 432,731.40 and 203,289.99
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Solution
The fourth proportional to 313,868.09, 432,731.40 and 203,289.99 is: 280,276.86
Step by Step Solution
- Step 1: Write the proportion equation
313,868.09 : 432,731.40 = 203,289.99 : x - Step 2: Convert to fraction form
313,868.09/432,731.40 = 203,289.99/x - Step 3: Cross multiply
313,868.09x = 432,731.40 × 203,289.99 - Step 4: Simplify right side
313,868.09x = 87,969,961,978.69 - Step 5: Solve for x
x = 87,969,961,978.69/313,868.09 - Step 6: Final answer
x = 280,276.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.