Finding the Fourth Proportional to 255,131.24, 382,696.87 and 77,688.99
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Solution
The fourth proportional to 255,131.24, 382,696.87 and 77,688.99 is: 116,533.49
Step by Step Solution
- Step 1: Write the proportion equation
255,131.24 : 382,696.87 = 77,688.99 : x - Step 2: Convert to fraction form
255,131.24/382,696.87 = 77,688.99/x - Step 3: Cross multiply
255,131.24x = 382,696.87 × 77,688.99 - Step 4: Simplify right side
255,131.24x = 29,731,333,112.24 - Step 5: Solve for x
x = 29,731,333,112.24/255,131.24 - Step 6: Final answer
x = 116,533.49
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1.5x scale
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.