Finding the Fourth Proportional to 259,191.99, 388,314.27 and 187,938.09
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Solution
The fourth proportional to 259,191.99, 388,314.27 and 187,938.09 is: 281,563.65
Step by Step Solution
- Step 1: Write the proportion equation
259,191.99 : 388,314.27 = 187,938.09 : x - Step 2: Convert to fraction form
259,191.99/388,314.27 = 187,938.09/x - Step 3: Cross multiply
259,191.99x = 388,314.27 × 187,938.09 - Step 4: Simplify right side
259,191.99x = 72,979,042,223.54 - Step 5: Solve for x
x = 72,979,042,223.54/259,191.99 - Step 6: Final answer
x = 281,563.65
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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.