Finding the Fourth Proportional to 313,038.95, 431,993.75 and 177,069.99
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Solution
The fourth proportional to 313,038.95, 431,993.75 and 177,069.99 is: 244,356.58
Step by Step Solution
- Step 1: Write the proportion equation
313,038.95 : 431,993.75 = 177,069.99 : x - Step 2: Convert to fraction form
313,038.95/431,993.75 = 177,069.99/x - Step 3: Cross multiply
313,038.95x = 431,993.75 × 177,069.99 - Step 4: Simplify right side
313,038.95x = 76,493,128,107.21 - Step 5: Solve for x
x = 76,493,128,107.21/313,038.95 - Step 6: Final answer
x = 244,356.58
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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.