Finding the Fourth Proportional to 262,470.87, 393,768.99 and 84,978.09
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Solution
The fourth proportional to 262,470.87, 393,768.99 and 84,978.09 is: 127,487.43
Step by Step Solution
- Step 1: Write the proportion equation
262,470.87 : 393,768.99 = 84,978.09 : x - Step 2: Convert to fraction form
262,470.87/393,768.99 = 84,978.09/x - Step 3: Cross multiply
262,470.87x = 393,768.99 × 84,978.09 - Step 4: Simplify right side
262,470.87x = 33,461,736,671.43 - Step 5: Solve for x
x = 33,461,736,671.43/262,470.87 - Step 6: Final answer
x = 127,487.43
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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.