Finding the Fourth Proportional to 313,509.35, 432,647.87 and 177,539.61
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Solution
The fourth proportional to 313,509.35, 432,647.87 and 177,539.61 is: 245,007.47
Step by Step Solution
- Step 1: Write the proportion equation
313,509.35 : 432,647.87 = 177,539.61 : x - Step 2: Convert to fraction form
313,509.35/432,647.87 = 177,539.61/x - Step 3: Cross multiply
313,509.35x = 432,647.87 × 177,539.61 - Step 4: Simplify right side
313,509.35x = 76,812,134,107.13 - Step 5: Solve for x
x = 76,812,134,107.13/313,509.35 - Step 6: Final answer
x = 245,007.47
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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.